Granted Patent
Utility
US 6,562,457
· Confirmation No. 4387
POLYETHER ESTER ELASTOMER COMPRISING POLYTRIMETHYLENE ETHER ESTER SOFT SEGMENT AND TETRAMETHYLENE ESTER HARD SEGMENT
Patented Case
View Patent ↗
Inventors
Marc B. Goldfinger
West Chester, PA
Hari B. Sunkara
Wilmington, DE
Attorneys & Agents of Record
Classification
USPC
528/272
C08G63/66
C08G63/672
Y10T428/2904
Y10T428/2913
Y10T428/2915
Prosecution
- Examiner
- ACQUAH, SAMUEL A
- Art Unit
- 1711
- Customer No.
- 23906
- Docket No.
- CH-2767 US NA
- Confirmation No.
- 4387
Patent Term Adjustment
0days
CORRECTIVE ASSIGNMENT TO CORRECT THE ENTITY TYPE PREVIOUSLY RECORDED AT REEL: 049879 FRAME: 0043. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Recorded 2019-09-06
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2019-07-26
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-03-14
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Quick Facts
- Patent No.
- US 6,562,457
- App. No.
- 10/016,195
- Filed
- 2001-10-31
- Granted
- 2003-05-13
- Examiner
- ACQUAH, SAMUEL A
- Art Unit
- 1711
- PTA
- 0 days
External Links