Granted Patent
Utility
US 4,141,111 · App. 05/808,186
Ice scraper
Inventors:
Evan L. Hopkins, Donald W. Cartner
Patented Case
View Patent ↗
Granted: Feb 27, 1979
Filed: Jun 20, 1977
Inventors
Evan L. Hopkins
Donald W. Cartner
Assignee (at issue)
Hopkins Manufacturing 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.