Granted Patent
Utility
US 5,326,511 · App. 07/928,806
Method for forming compressible material into discrete solid blocks
Inventors:
Donnell Cooper, Bobby L. Starling
Patented Case
View Patent ↗
Granted: Jul 5, 1994
Filed: Aug 12, 1992
Inventors
Donnell Cooper
Bobby L. Starling
Assignee (at issue)
Pneumafil 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.