Patent US2492848A successfully refreshed from Google Patents.
US2492848A
Expired / Lapsed
US
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Temporary protective coating
Assignee: Phillips Petroleum Co
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Filing: 1946-09-30
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Granted: 1949-12-27
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Expires: 1966-09-30
Abstract
No abstract record available.
Inventors
- 👤 Willie W Crouch
- 👤 Joseph A Delap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:53
CPC Classifications
C; C09; C09D; C09D195/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1404511A
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US2069314A
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US2162618A
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US2299144A
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US2250185A
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US2396910A
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US2394101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |