PATENT CLAIM ANALYSIS

Application Number: 15877493
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["182", "078000"]

Abstract:
A folding staircase for use in a door opening having a threshold. The folding staircase has a pair of stringers that have an upper end and a lower end that is adapted for contacting a ground surface. The stringers are spanned by at least one tread. A hinge is connected to a floor near the door opening and a threshold plate pivotally connected thereto is movable between a use position and a stowed position. The staircase may be provided with a lifting mechanism that biases the staircase and threshold plate toward their stowed positions. The lifting device provides a variable force that provides more rotational force when the staircase would require a user to bear more of its weight and less force when less of the weight of the staircase would be borne by a user.

Claim (Index 4):
The folding staircase of  claim 2 , further comprising a spring pivotally affixed about a first pivot point on said second hinge flange of said second mounting bracket and said spring pivotally affixed to said second hinge flange of said threshold plate about a second pivot point, said spring being located on the same side of said second wall mount flange as said pivot axis extending through said first and second hinge flanges thereby leaving said door opening unobstructed when said wall mount flanges of said mounting brackets are mounted to said inner wall surface, said spring exerting a force between said threshold plate and said second mounting bracket urging rotation of said threshold plate toward said stowed position.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 1.91892
- Patent Class: 182.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15615102', '15361109', '15713848', '12788884', '15461915']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7016106602110731
- 35 USC 102 Novelty (BERT): 0.5668103639038811
- Combined Prediction Score: 0.688130630580354
- Mean Citation Score: 252.779074
- Max Citation Score: 467.23026
- Similarity Product: 384.51873027436494

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test