Granted Patent
Utility
US 4,338,056 · App. 06/145,701
System for loading and unloading a kiln
Inventors:
Daniel P. Abrahamson, Paul M. Thomas
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: May 1, 1980
Inventors
Daniel P. Abrahamson
Paul M. Thomas
Assignee (at issue)
Builders Equipment Company
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.