Patent US2909441A successfully refreshed from Google Patents.
US2909441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating composition of asphaltenes and plasticizer
Assignee: KERR MC GEE OIL IND Inc
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Filing: 1957-01-15
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Granted: 1959-10-20
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Expires: 1977-01-15
Abstract
No abstract record available.
Inventors
- 👤 Marion W Pickell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:32
CPC Classifications
C; C09; C09D; C09D195/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROTECTIVE COATING COMPOSITION COMPRISING FROM 25 TO 50% BY WEIGHT OF ASPHALTENES AND 75 TO 50% BY WEIGHT OF SOFT ASPHALTIC BITUMINOUS MATERIAL BASED UPON THE COMBINED WEIGHT OF ASPHALTENES AND ASPHALTIC BITUMINOUS MATERIAL, THE COMPOSITION CONTAINING SUFFICIENT ASPHALTENES TO RENDER THE COMPOSITION NON-HOMOGENEOUS.
Claim 2
Dependent Claim
45 words
A PROTECTIVE COATING COMPOSITION COMPRISING FROM 25 TO 50% BY WEIGHT OF ASPHALTENES AND 75 TO 50% BY WEIGHT OF SOFT ASPHALTIC BITUMINOUS MATERIAL BASED UPON THE COMBINED WEIGHT OF ASPHALTENES AND ASPHALTIC BITUMINOUS MATERIAL, THE COMPOSITION CONTAINING SUFFICIENT ASPHALTENES TO RENDER THE COMPOSITION NON-HOMOGENEOUS.
References Cited (Backward Citations)
GB280085A
Cited
GB310924A
Cited
US2366657A
Cited
US2487000A
Cited
GB683170A
Cited
US2752264A
Cited
US2786775A
Cited
US2785078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |