Granted Patent
Utility
US 5,022,618 · App. 07/477,246
Mailbox support apparatus
Inventors:
Michael E. Barrett, Thomas C. Laughon, Roy V. Nicholson
Patented Case
View Patent ↗
Granted: Jun 11, 1991
Filed: Feb 8, 1990
Inventors
Michael E. Barrett
Thomas C. Laughon
Roy V. Nicholson
Assignee (at issue)
McCalla/Lackey Products 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.