Granted Patent
Utility
US 4,821,489 · App. 06/428,087
Method and apparatus for sealing a flexible bag to a pallet
Inventors:
Richard F. Macleod, Kevin J. Bolejack
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Sep 29, 1982
Inventors
Richard F. Macleod
Kevin J. Bolejack
Assignee (at issue)
Transfresh 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.