Granted Patent
Utility
US 5,081,776 · App. 07/558,251
Greeting card structure
Inventors:
Irving I. Stone, Glenn T. Imhoff
Patented Case
View Patent ↗
Granted: Jan 21, 1992
Filed: Jul 24, 1990
Inventors
Irving I. Stone
Glenn T. Imhoff
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.