Patent US3278472A successfully refreshed from Google Patents.
US3278472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of poly-alpha-olefins by asphaltic substances
Assignee: Eastman Kodak Co
•
Filing: 1960-05-12
•
Granted: 1966-10-11
•
Expires: 1980-05-12
Abstract
No abstract record available.
Inventors
- 👤 John W Tamblyn
- 👤 Gerald M Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:57
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10; C08L95/00; C08L2207/00; C08L2207/06; C08L2207/062; C08L2207/10; C08L2207/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
HEAT AND WEATHER STABILIZED POLYPROPYLENE COMPRISIN POLYPROPYLENE AND 0.1 TO 10% OF A PYROLYSATE CONTAINING FROM ABOUT 2% TO 6% SULFUR SELECTED FROM THE GROUP CONSISTING OF ASPHALTS, BITUMEN, TARA AND PITCHES.
Claim 2
Dependent Claim
32 words
HEAT AND WEATHER STABILIZED POLYPROPYLENE COMPRISIN POLYPROPYLENE AND 0.1 TO 10% OF A PYROLYSATE CONTAINING FROM ABOUT 2% TO 6% SULFUR SELECTED FROM THE GROUP CONSISTING OF ASPHALTS, BITUMEN, TARA AND PITCHES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |