Question: BBC applied for the TARDIS trademark in what year?
About the article "Doctor Who", section "Public consciousness".

Candidate passages:
When "Doctor Who" was being developed in 1963, the production staff discussed what the Doctor's time machine would look like.
To keep the design within budget, it was decided to make it resemble a police telephone box.
This was explained in the context of the series as a disguise created by the ship's "chameleon circuit", a mechanism which is responsible for changing the outside appearance of the ship the millisecond it lands in order to fit in with its environment.
The Ninth Doctor explains that if, for example, a TARDIS (with a working chameleon circuit) were to materialise in ancient Rome it might disguise itself as a statue on a plinth.
The First Doctor explained that if it were to land in the middle of the Indian Mutiny, it might take on the appearance of a howdah (the carrier on the back of an elephant).
A further premise was that the circuit was broken, explaining why it was "stuck" in that form.
The idea for the police-box disguise came from BBC staff writer Anthony Coburn, who rewrote the programme's first episode from a draft by C. E. Webber.
In the first episode, "An Unearthly Child", the TARDIS is first seen in a 1963 junkyard.
It subsequently malfunctions, retaining the police box shape in a prehistoric landscape.
At the time of the series' debut in 1963, the police box was still a common fixture in British cities.
It provided a direct telephone link to the local police station; the telephone was located behind a small, hinged door, making it possible to use it from the outside, while the box itself was used as a temporary office containing a desk.
In "The Empty Child" (2005), the Doctor stated that the telephone is not connected to a telephone line, and in "Logopolis" (1981), the Master materialised his TARDIS around a normal police box while a police officer was using the telephone, causing the line to go dead.
However, in "The Day of the Doctor", the Doctor successfully used the telephone.
The police box prop that was the first to be built for the programme was designed by Peter Brachacki, who worked as designer on the first episode.
Nevertheless, one story has it the box came from "Z Cars", while "Doctor Who" producer Steven Moffat has said that the original TARDIS prop was reused from "Dixon of Dock Green", although this is explicitly contradicted by the research cited on the BBC's own website.
Despite changes in the prop, the TARDIS has become the show's most consistently recognisable visual element.
The dimensions and colour of the TARDIS props used in the series have changed many times, as a result of damage and the needs of the show, and none of the BBC props has been a faithful replica of the original MacKenzie Trench model.
This was referenced on-screen in the episode "Blink" (2007), when the character Detective Inspector Shipton says the TARDIS "isn't a real box.
The phone's just a dummy, and the windows are the wrong size.
"The production team conceived of the TARDIS travelling by dematerialising at one point and rematerialising elsewhere, although sometimes in the series it is shown also to be capable of conventional space travel.
In the 2006 Christmas special, "The Runaway Bride", the Doctor remarks that for a spaceship, the TARDIS does remarkably little flying.
The ability to travel simply by fading into and out of different locations became one of the trademarks of the show, allowing for a great deal of versatility in setting and storytelling without a large expense in special effects.
The distinctive accompanying sound effect – a cyclic wheezing, groaning noise – was originally created in the BBC Radiophonic Workshop by Brian Hodgson.
He produced the effect by dragging a set of house keys along the strings of an old, gutted piano.
The resulting sound was recorded and electronically processed with echo and reverb.
When employed in the series, the sound is usual synchronised with the flashing light on top of the police box, or the fade-in and fade-out effects of a TARDIS (see "Controls" below).
The comic strip feature of "Doctor Who Magazine" traditionally represents the ship's distinctive dematerialisation sound with the onomatopoeic phrase "vworp vworp".
The sound itself was heard during a segment of the 2012 Summer Olympics opening ceremony in London as rock band Queen's Bohemian Rhapsody was played to the stadium.
In 1996, the BBC applied to the UK Patent Office to register the TARDIS as a trademark.
This was challenged by the Metropolitan Police, who felt that they owned the rights to the police box image.
However, the Patent Office found that there was no evidence that the Metropolitan Police – or any other police force – had ever registered the image as a trademark.
In addition, the BBC had been selling merchandise based on the image for over three decades without complaint by the police.
The Patent Office issued a ruling in favour of the BBC in 2002. 
The BBC science-fiction television series "Doctor Who" features a time machine, the TARDIS, disguised as a Mackenzie Trench-style police box; normally capable of disguising itself to blend into its surroundings, the ship's chameleon circuit broke down in England 1963, and left the TARDIS seen most often in the show stuck as a police box, except for a brief period in one adventure seen in 1985.
"Doctor Who" was originally transmitted from 1963 to 1989; as police boxes were phased out in the 1970s, over time the image of the blue police box became associated as much with "Doctor Who" as with the police.
In 1996, the BBC applied for a trademark to use the blue police box design in merchandising associated with "Doctor Who".
In 1998, the Metropolitan Police filed an objection to the trademark claim, maintaining that they owned the rights to the police box image.
In 2002 the Patent Office ruled in favour of the BBC, arguing out that there was no evidence that the Metropolitan Police—or any other police force—had ever registered the image as a trademark.
In addition, the BBC had been selling merchandise based on the image for over three decades without complaint by the police.
The series was revived in 2005, and the police box continues to feature prominently in almost every episode.
Although the dimensions and colour of the TARDIS used in the series have changed many times, none of the BBC props has been a faithful replica of the original MacKenzie Trench model.
This has been explained within the context of the show that the Chameleon Circuit that facilitates the shape is first, malfunctioning, and second, even working circuits tend to display a bit of "drift" if left in the same setting for too long. 
The 1996 television movie revealed a new function for the Eye.
No longer just a power source for Gallifrey, in the movie an artifact referred to as the Eye of Harmony was part of the TARDIS and, for the first time, was stated to be the TARDIS's primary power source, located in the centre of the TARDIS' cloister room.
It was also shown that leaving the TARDIS's Eye open for too long would result in space/time distortion as the space around the Eye was exposed to the gravitational effects of the singularity; the Earth is nearly destroyed in the process.
The Eye of Harmony can be opened using human eyes, meaning the Master, despite possessing a human body, cannot open it as he has retained snake-like eyes.
The Master is sucked into the Eye of Harmony and apparently killed when he fights the Doctor.
However, having the Eye of Harmony on board the TARDIS contradicted the idea that the Eye itself was on Gallifrey.
To reconcile this, fan speculation held that this was not the real Eye, but merely a name applied to a remote link to the actual Eye that powered the craft (possibly in the same way the Time Lords transmitted energy from Gallifrey to the TARDIS in "The Three Doctors"), or alternatively, the Eye had been somehow transferred to the TARDIS.
The former conjecture became established fanon, and was taken up in the spin-off media and was eventually confirmed by the official BBC website.
The Past Doctor Adventures novel "The Quantum Archangel" by Craig Hinton offered another explanation by claiming that all TARDISes built after a certain point, including the Type 40 the Doctor uses, have a mathematically modelled duplicate of the Eye with all its attendant features, thus helping the TARDIS's cope with the previously-discovered power problems inherent if they travel too far away from the original Eye.
The television movie also reveals a link between the Eye of Harmony on board the TARDIS and the Doctor's own eyes.
The Master uses the Eye to see what the Doctor is seeing at the same moment.
The symbiosis between a Time Lord and his TARDIS has been hinted at before, such as in the sixth Doctor story "The Two Doctors" in which The Sontaran try to isolate the Doctor's symbiotic nuclei in an attempt to construct their own time machine. 
Brachacki was production designer for the very first episode of "Doctor Who", "An Unearthly Child", shot and broadcast in 1963.
Despite the success of his design for the TARDIS interior set, he was not enthusiastic about working on the programme and did so under duress.
He worked only on the very first episode and its re-mount, thereafter being replaced on the opening serial by Barry Newbery and never working on the series again.
Director Waris Hussein recalled in later interviews that he was never happy with Brachacki's contribution and only kept him on as designer out of necessity, as there was not the time to request a replacement.
Brachacki’s concept for the TARDIS interior included:  the sterile, white timeless look  the scattering about of random furniture and objects from different periods  the central hexagonal console, designed so that all controls should be equally accessible to a single pilot  the moving time column, intended to give an at-a-glance indication of the ship's status and whereabouts  the roundels set into the wall, intended to pulsate when the ship was in motion.
(This and other initial concepts were never realised due to budgetary restraints.)
Hussein later noted that the roundel pattern arose simply from the fact that the plastic with which Brachacki had made his initial concept model featured round patterning.
The TARDIS interior saw occasional redesigns over the following twenty-six years, but always in line with the original concept.
The console room was completely redesigned for the show's fourteenth season, but still the concept was retained of the single central console and the roundels on the wall.
This became the default TARDIS design: hence the same concept applied for the brief glimpse of the interior of the Rani's TARDIS in the episode season twenty-two serial The Mark of the Rani.
Similarly the Meddling Monk's TARDIS, and the Master's TARDIS during the Pertwee era, always followed roughly the same design as the Doctor's TARDIS, mostly because these last were obviously the same sets as were used for the Doctor's TARDIS, slightly redressed.
The TARDIS interior was completely redesigned again for the 1996 "Doctor Who" TV movie, and the new series that began broadcasting in 2005.
Even then the central console was retained, and the new television series includes the geometric patterns on the walls.
In 2013 the BBC produced a docudrama called "An Adventure in Space and Time", depicting the creation and early days of "Doctor Who", as part of the programme's fiftieth anniversary celebrations.
Brachacki appears as a character in the drama, played by actor David Annen. 
"Doctorin' the Tardis" was given an international single release on 23 May 1988.
In the US it was re-issued in 1991, containing The KLF's "What Time Is Love?
(Pure Trance Original)".
The formats and track listings are tabulated below:Key DR - "Doctorin' the Tardis" (radio edit / 7" Mix) (3:37) DC - "Doctorin' the Tardis" (Club Mix / 12" Mix) (8:15) DM - "Doctorin' the Tardis (Minimal)" (4:28) DV - "Doctorin' the Tardis (Video Mix)" (2:20) GT - "Gary in the Tardis" (3:26) GM - "Gary in the Tardis (Minimal)" (4:08) GJ - "Gary Joins The JAMs" (usually 6:22) W - "What Time Is Love?
(Pure Trance Original)" (7:06)