Granted Patent
Utility
US 6,152,638 · App. 09/171,872
Extendable legs for stands or similar appliances
Inventor:
Richard Lindsay
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Mar 4, 1999
Inventor
Richard Lindsay
Assignee (at issue)
THE VITEC GROUP PLC
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.