Granted Patent
Utility
US 6,462,225 · App. 09/741,868
Method for producing 2,2-dimethyl-3-(1-propenyl)cyclopropanecarboxylate ester
Inventor:
Tomonori Yoshiyama
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Dec 22, 2000
Inventor
Tomonori Yoshiyama
Assignee (at issue)
SUMITOMO CHEMICAL COMPANY, LIMITED
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.