US2964391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of synthetic linear polymers
Assignee: Imperial Chemical Industries Ltd
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Filing: 1958-01-03
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Granted: 1960-12-13
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Expires: 1978-01-03
Abstract
No abstract record available.
Inventors
- 👤 Benson Richard William Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:00
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/785; B; B01; B01F; B01F27/00; B01F27/60; B01F27/70; B01F27/701; B01F27/702; B01J; B01J19/00; B01J19/18; B01F35/00; B01F35/50; B01F35/53; B01F35/531; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00162; B01J2219/18; B01J2219/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |