Granted Patent
Utility
US 4,516,973 · App. 06/474,770
One-piece disposable collection bag having a rigid cover for a suction canister unit
Inventor:
Anil M. Telang
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Mar 14, 1983
Inventor
Anil M. Telang
Assignee (at issue)
BECTON, DICKINSON AND COMPANY
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.