US2396753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of hydrocarbons
Assignee: Standard Oil Development Co
•
Filing: 1940-10-01
•
Granted: 1946-03-19
•
Expires: 1960-10-01
Abstract
No abstract record available.
Inventors
- 👤 Rosen Raphael
- 👤 Ober C Slotterbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:13
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/16; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911; Y10S585/914
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) | 1949-03-18 | 1949-09-17 | 1950-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-18 | 1953-09-17 | 1954-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-18 | 1957-09-17 | 1958-03-19 | $7700.00 | Window Closed / Lapsed |