Granted Patent
Utility
US 5,573,489 · App. 08/172,368
Integral handled layflat thermoplastic bag
Inventors:
Carl R. Letendre, Earle R. Powell
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Dec 22, 1993
Inventors
Carl R. Letendre
Earle R. Powell
Assignee (at issue)
Tenneco Plastics 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.