Granted Patent
Utility
US 5,220,065 · App. 07/865,270
Method for producing n-methylolacrylamide
Inventors:
Yasuyuki Takayanagi, Kiyobmi Takahashi, Tomio Nakamura
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Apr 8, 1992
Inventors
Yasuyuki Takayanagi
Kiyobmi Takahashi
Tomio Nakamura
Assignee (at issue)
Nitto Chemical Industry 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.