Granted Patent
Utility
US 4,453,908 · App. 06/487,261
Pellet mill void space filler
Inventor:
Odd Maarten Visser
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Apr 21, 1983
Inventor
Odd Maarten Visser
Assignee (at issue)
California Pellet Mill 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.