Granted Patent
Utility
US 4,042,658 · App. 05/632,073
Method for making packaging particles and resulting product
Inventor:
Frederick H. Collins
Patented Case
View Patent ↗
Granted: Aug 16, 1977
Filed: Nov 14, 1975
Inventor
Frederick H. Collins
Assignee (at issue)
Valcour Imprinted Papers, 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.