Granted Patent
Utility
US 4,291,972 · App. 06/109,821
Photographic reprint system with large print quantity verification
Inventors:
Ronald C. Laska, Janis Pone
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Jan 7, 1980
Inventors
Ronald C. Laska
Janis Pone
Assignee (at issue)
Pako 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.