Granted Patent
Utility
US 4,904,092 · App. 07/259,840
Roll of thermoplastic bags
Inventors:
Pat C. Campbell, James A. Greiner, Bruce E. Nattinger
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Oct 19, 1988
Inventors
Pat C. Campbell
James A. Greiner
Bruce E. Nattinger
Assignee (at issue)
Mobil Oil Corporation
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.