Granted Patent
Utility
US 4,324,495 · App. 06/171,779
Fiber feeder pulley cleaning system
Inventor:
Emilio M. Martinez
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Jul 24, 1980
Inventor
Emilio M. Martinez
Assignee (at issue)
Manville Service 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.