IP Library Granted Patent US 5,959,150
Granted Patent Utility
US 5,959,150 · App. 08/426,653

Process for preparing methylamines

Inventors: Tadamitsu Kiyoura, Shigeki Nakahara
Patented Case View Patent ↗
Granted: Sep 28, 1999 Filed: Apr 21, 1995
Inventors
Tadamitsu Kiyoura
Shigeki Nakahara
Assignee (at issue)
MITSUI CHEMICALS, INC.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,959,150
App. No.
08/426,653
Filed
1995-04-21
Granted
1999-09-28
Kind
A