Granted Patent
Utility
US 4,883,694 · App. 07/322,351
Method of forming flexible packages and novel flexible packages
Inventor:
Balasubramaniam Ramalingam
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Mar 13, 1989
Inventor
Balasubramaniam Ramalingam
Assignee (at issue)
Century Adhesives Inc.
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.