US3144422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins stabilized with pentaerythritol mercapto esters
Assignee: Carlisle Chemical Works Inc
•
Filing: 1962-01-03
•
Granted: 1964-08-11
•
Expires: 1982-01-03
Abstract
No abstract record available.
Inventors
- 👤 Otto A Homberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A POLYMER OF A MONOLEFIN HAVING 2 TO 4 CARBON ATOMS HAVING ADMIXED THEREWITH A STABILIZING AMOUNT OF A MERCAPTO COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
24 words
A POLYMER OF A MONOLEFIN HAVING 2 TO 4 CARBON ATOMS HAVING ADMIXED THEREWITH A STABILIZING AMOUNT OF A MERCAPTO COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2381247A
Cited
US2461920A
Cited
US2462331A
Cited
US2522476A
Cited
US2579219A
Cited
US3069447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |