IP Library › Granted Patent US 4,435,340
Granted Patent Utility
US 4,435,340 · App. 06/340,972

Process for preparing microcapsules for pressure sensitive manifold paper

Inventors: Tetsuro Horiike, Takio Kuroda, Tomoharu Shiozaki
Patented Case View Patent ↗
Granted: Mar 6, 1984 Filed: Jan 20, 1982
Inventors
Tetsuro Horiike
Takio Kuroda
Tomoharu Shiozaki
Assignee (at issue)
Kanzaki Paper Manufacturing 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.

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 4,435,340
App. No.
06/340,972
Filed
1982-01-20
Granted
1984-03-06
Kind
A