Patent US2467498A successfully refreshed from Google Patents.
US2467498A
Expired / Lapsed
US
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Process of making synthetic resin adhesive base from cresylic acid and furfural
Assignee: American Marietta Co
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Filing: 1942-09-08
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Granted: 1949-04-19
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Expires: 1962-09-08
Abstract
No abstract record available.
Inventors
- 👤 Donald V Redfern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:23
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08L; C08L61/00; C08L61/04; C08L61/06; C08L61/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2168160A
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US2193941A
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US2175480A
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US2197724A
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US2292624A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |