Granted Patent
Utility
US 4,527,512 · App. 06/547,970
Collapsible animal cage
Inventor:
Masami Sugiura
Patented Case
View Patent ↗
Granted: Jul 9, 1985
Filed: Nov 2, 1983
Inventor
Masami Sugiura
Assignee (at issue)
Tokyo Petcage Co., Ltd.
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.