Granted Patent
Utility
US 4,099,276 · App. 05/708,428
Support appliances having articulated sections
Inventors:
William V. Hunt, Frank Edward Mayhew Ducker
Patented Case
View Patent ↗
Granted: Jul 11, 1978
Filed: Jul 26, 1976
Inventors
William V. Hunt
Frank Edward Mayhew Ducker
Assignee (at issue)
Watkins and Watson Limited
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.