Granted Patent
Utility
US 4,935,413 · App. 07/058,782
Carbamate physical property-improving reagent
Inventors:
Satoshi Urano, Ryuzo Mizuguchi, Noriyuki Tsuboniwa, Kei Roger Aoki, Yuji Suzuki, Takeyasu Itoh
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Jun 5, 1987
Inventors
Satoshi Urano
Ryuzo Mizuguchi
Noriyuki Tsuboniwa
Kei Roger Aoki
Yuji Suzuki
Takeyasu Itoh
Assignee (at issue)
NIPPON PAINT HOLDINGS CO., LTD.
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.