Granted Patent
Utility
US 5,087,872 · App. 07/479,467
Circulating load apparatus
Inventor:
Suresh C. Gupta
Patented Case
View Patent ↗
Granted: Feb 11, 1992
Filed: Feb 13, 1990
Inventor
Suresh C. Gupta
Assignee (at issue)
Deltec Electronics Corporation
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.