US2373135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydroxylated polymers
Assignee: EIDP Inc
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Filing: 1942-04-14
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Granted: 1945-04-10
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Expires: 1962-04-14
Abstract
No abstract record available.
Inventors
- 👤 Maxwell Robert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:27
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C; C08; C08B; C08B15/00; C08B15/05; C08B15/06; C08B15/10; C08G; C08G12/00; C08G12/46; C08L; C08L29/00; C08L29/02; C08L29/04
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) | 1948-04-09 | 1948-10-09 | 1949-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-09 | 1952-10-09 | 1953-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-09 | 1956-10-09 | 1957-04-10 | $7700.00 | Window Closed / Lapsed |