Granted Patent
Utility
US 4,264,011 · App. 06/078,158
Portable thread storage apparatus
Inventors:
Lorraine E. Dalbo, Relda W. Eaton
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Sep 24, 1979
Inventors
Lorraine E. Dalbo
Relda W. Eaton
Assignee (at issue)
Dal-Craft, Inc.
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.