IP Library › Granted Patent US 4,614,521
Granted Patent Utility
US 4,614,521 · App. 06/733,222

Transfer recording method using reactive sublimable dyes

Inventors: Toshio Niwa, Yukichi Murata, Shuichi Maeda
Patented Case View Patent ↗
Granted: Sep 30, 1986 Filed: May 10, 1985
Inventors
Toshio Niwa
Yukichi Murata
Shuichi Maeda
Assignee (at issue)
Mitsubishi Chemical Industries, 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 4,614,521
App. No.
06/733,222
Filed
1985-05-10
Granted
1986-09-30
Kind
A