Granted Patent
Utility
US 4,903,914 · App. 07/367,122
Warping yarn accumulator
Inventors:
Douglas K. Seaborn, Louis B. Williams, Jr.
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Jun 16, 1989
Inventors
Douglas K. Seaborn
Louis B. Williams, Jr.
Assignee (at issue)
Douglas K. Seaborn
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.