IP Library Granted Patent US 4,741,739
Granted Patent Utility
US 4,741,739 · App. 07/046,971

Process for printing or dyeing cellulose-containing textile material with reactive dyes in aqueous foam preparation containing a quaternary ammonium condensate

Inventors: Hans-Ulrich Berendt, Martin Kuhn
Patented Case View Patent ↗
Granted: May 3, 1988 Filed: May 6, 1987
Inventors
Hans-Ulrich Berendt
Martin Kuhn
Assignee (at issue)
Ciba-Geigy

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 4,741,739
App. No.
07/046,971
Filed
1987-05-06
Granted
1988-05-03
Kind
A