Patent US2383189A successfully refreshed from Google Patents.
US2383189A
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Polymerization of oils
Assignee: HANCOCK OIL Co OF CALIFOR
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Filing: 1942-03-25
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Granted: 1945-08-21
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Expires: 1962-03-25
Abstract
No abstract record available.
Inventors
- 👤 William T Hancock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:41
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; B; B01; B01J; B01J19/00; B01J19/18; B01J19/1862; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00105; B01J2219/00108; B01J2219/00159; B01J2219/00186; C07C2527/00; C07C2527/20; C07C2527/22; C07C2527/224; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/922
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 |