Granted Patent
Utility
US 4,130,299 · App. 05/832,698
Low-odor dye solvents for pressure-sensitive copying systems
Inventor:
James C. Wygant
Patented Case
View Patent ↗
Granted: Dec 19, 1978
Filed: Sep 12, 1977
Inventor
James C. Wygant
Assignee (at issue)
Monsanto 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.