US2746875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax composition
Assignee: Sunoco Inc
•
Filing: 1953-02-13
•
Granted: 1956-05-22
•
Expires: 1973-02-13
Abstract
No abstract record available.
Inventors
- 👤 Ivor W Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:41
CPC Classifications
C; C09; C09G; C09G1/00; C09G1/06; C09G1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A WAX COMPOSITION COMPRISING MAINLY A MICROCRYSTALLINE PETROLEUM WAX HAVING A PENETRATION LESS THAN 10 AT 77* F. AND HAVING INCORPPRATED THEREIN COLLODIAL HYDROPHOBIC SILICA OF PARTICLE SIZE LESS THAN 0.1 MICRON IN MINOR AMOUNT WITHIN THE REANGE OF ABOUT 2 TO 6% BY WEIGHT BASED ON THE MIXTURE, BUT SUFFICIENT TO SUBSTANTIALLY REDUCE THE PENETRATION.
Claim 2
Dependent Claim
56 words
A WAX COMPOSITION COMPRISING MAINLY A MICROCRYSTALLINE PETROLEUM WAX HAVING A PENETRATION LESS THAN 10 AT 77* F. AND HAVING INCORPPRATED THEREIN COLLODIAL HYDROPHOBIC SILICA OF PARTICLE SIZE LESS THAN 0.1 MICRON IN MINOR AMOUNT WITHIN THE REANGE OF ABOUT 2 TO 6% BY WEIGHT BASED ON THE MIXTURE, BUT SUFFICIENT TO SUBSTANTIALLY REDUCE THE PENETRATION.
References Cited (Backward Citations)
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Cited
US2567315A
Cited
US2597871A
Cited
US2559398A
Cited
US2601291A
Cited
US2614994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |