US2486533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing selective polymers
Assignee: Universal Oil Products Co
•
Filing: 1947-01-29
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Granted: 1949-11-01
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Expires: 1967-01-29
Abstract
No abstract record available.
Inventors
- 👤 Harrison C Mayland
- 👤 Clarence G Gerhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:51
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/18; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2176354A
Cited
US2314458A
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US2245143A
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US2348836A
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US2396753A
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US2332298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |