IP Library › Granted Patent US 643,533
Granted Patent S1
US 643,533 · App. 29/380,065 · Granted Aug 16, 2011

Tracheal dilator

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
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 643,533
App. No.
29/380,065
Granted
Aug 16, 2011
Kind
S1
Claims (1)

We claim the ornamental design for a tracheal dilator, as shown and described.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2012
From: NELLCOR PURITAN BENNETT LLC
To: COVIDIEN LP
Reel/Frame 029431/0766 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2011
From: HARRINGTON, ROGER; BAKER, ALONZO W., JR.; MAGUIRE, SEAMUS
To: NELLCOR PURITAN BENNETT LLC
Reel/Frame 025728/0477 →