Granted Patent
Utility
US 4,711,745 · App. 07/001,419
High turndown bubble cap tray
Inventors:
Michael James Lockett, Daniel Richard Summers, Vinson C. Smith, James C. Upchurch
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Jan 8, 1987
Inventors
Michael James Lockett
Daniel Richard Summers
Vinson C. Smith
James C. Upchurch
Assignee (at issue)
Union Carbide 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.