Patent US2465150A successfully refreshed from Google Patents.
US2465150A
Expired / Lapsed
US
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Manufacture of highly polymeric substances
Assignee: EIDP Inc
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Filing: 1945-12-29
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Granted: 1949-03-22
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Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Diekson James Tennant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:26
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/672; C08G63/02; C08G63/12; C08G63/16; D; D01; D01F; D01F6/00; D01F6/58; D01F6/62; C08G63/78; C08G63/82
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) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |