Granted Patent
Utility
US 5,938,496 · App. 08/756,256
Constructional pieces with deformable joints
Inventor:
Yu Zheng
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Nov 25, 1996
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.