IP Library › Granted Patent US 6,803,471
Granted Patent Utility
US 6,803,471 · App. 10/058,994

Indolinospiropyran compounds and methods for their manufacture

Inventors: Erick Carreira, Weili Zhao
Patented Case View Patent ↗
Granted: Oct 12, 2004 Filed: Jan 28, 2002
Inventors
Erick Carreira
Weili Zhao
Assignee (at issue)
Johnson & Johnson Vision Care, 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 6,803,471
App. No.
10/058,994
Filed
2002-01-28
Granted
2004-10-12
Kind
B2