US2481294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of solutions of polyvinyl derivatives
Assignee: Rhodiaceta SA
•
Filing: 1947-06-24
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Granted: 1949-09-06
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Expires: 1967-06-24
Abstract
No abstract record available.
Inventors
- 👤 Corbiere Paul Camille Jacques
- 👤 Stuchlik Rene Emile Fernand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:44
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08K; C08K5/00; C08K5/36; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; C08J2327/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2198794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |