IP Library › Granted Patent US 6,663,883
Granted Patent Utility
US 6,663,883 · App. 10/069,072

Matrix adhering to nasal mucosa

Inventors: Yoko Akiyama, Naoki Nagahara, Hiroto Bando
Patented Case View Patent ↗
Granted: Dec 16, 2003 Filed: Feb 21, 2002
Inventors
Yoko Akiyama
Naoki Nagahara
Hiroto Bando
Assignee (at issue)
Takeda 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 6,663,883
App. No.
10/069,072
Filed
2002-02-21
Granted
2003-12-16
Kind
B1