Assertion: patent medicine | /r/HasProperty | patented
Facets:
value: legally
type: MANNER
value: rarely
type: DEGREE
Source sentences:
text: They were rarely patented because it was advantageous to be secretive about ingredients that were often ineffective and even hazardous.
text: Patent medicines, non-prescription concoctions that were neither legally patented nor clinically proven to cure disease, first appeared in the 1600s, but reached their height of popularity in nineteenth-century America.
text: In England, some nostrum makers succeeded in obtaining “Royal Patents” for their curing tonics and elixirs, a practice which eventually introduced the term ‘patent medicines’ for all their products, whether they were “formally” patented or not.