US2072107A
Expired / Lapsed
US
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Process for producing high boiling polymers useful for blending and other purposes
Assignee: Standard Oil Development Co
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Filing: 1933-06-06
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Granted: 1937-03-02
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Expires: 1953-06-06
Abstract
No abstract record available.
Inventors
- 👤 Stewart C Fulton
- 👤 Louis A Mikeska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:36
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C07; C07C; C07C2/00; C07C2/86; C07C2/861; C10M; C10M1/00; C10M1/08; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/22; C10M2209/00; C10M2209/10; C10M2209/101; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10N; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135; C10N2050/00; C10N2050/10
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) | 1940-03-01 | 1940-08-31 | 1941-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-01 | 1944-08-31 | 1945-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-01 | 1948-08-31 | 1949-03-02 | $7700.00 | Window Closed / Lapsed |