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US3516835A
Expired / Lapsed
US
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Coating compositions comprising alpha-sulfo lower alkyl ester of a c7 to c18 fatty acid
Assignee: GAF Corp
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Filing: 1965-10-29
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Granted: 1970-06-23
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Expires: 1985-10-29
Abstract
No abstract record available.
Inventors
- 👤 E Scudder Mackey
- 👤 Raymond L Mayhew
- 👤 George M Gantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:48
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1822977A
Cited
US2460968A
Cited
US2831766A
Cited
US3413221A
Cited
US3128294A
Cited
US3219584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |