Patent US2397093A successfully refreshed from Google Patents.
US2397093A
Expired / Lapsed
US
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Coating composition
Assignee: Celanese Corp
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Filing: 1942-12-12
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Granted: 1946-03-26
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Expires: 1962-12-12
Abstract
No abstract record available.
Inventors
- 👤 Dreyfus Camille
- 👤 Andersen Bjorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:16
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/06; C08; C08L; C08L25/00; C08L25/02; C08L25/16; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-03-25 | 1949-09-24 | 1950-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-25 | 1953-09-24 | 1954-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-25 | 1957-09-24 | 1958-03-26 | $7700.00 | Window Closed / Lapsed |