Granted Patent
Utility
US 6,045,093 · App. 09/118,282
Collapsible flying structures
Inventor:
Yu Zheng
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Jul 17, 1998
Inventor
Yu Zheng
Assignee (at issue)
Patent Category Corp.
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.