Patent US2383069A successfully refreshed from Google Patents.
US2383069A
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Polymerization of ethenoid monomers
Assignee: EIDP Inc
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Filing: 1940-07-23
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Granted: 1945-08-21
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Expires: 1960-07-23
Abstract
No abstract record available.
Inventors
- 👤 Barnard M Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:58
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00101; B01J2219/00162; B01J2219/00164; Y; Y10; Y10S; Y10S526/00; Y10S526/918
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) | 1948-08-20 | 1949-02-19 | 1949-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-20 | 1953-02-19 | 1953-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-20 | 1957-02-19 | 1957-08-21 | $7700.00 | Window Closed / Lapsed |