US2349458A
Expired / Lapsed
US
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Reaction of paraffinic hydrocarbons
Assignee: Standard Oil Development Co
•
Filing: 1938-11-26
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Granted: 1944-05-23
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Expires: 1958-11-26
Abstract
No abstract record available.
Inventors
- 👤 John J Owen
- 👤 Eldon E Stahly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:56
CPC Classifications
C; C07; C07C; C07C2/00; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/26; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/08; C07C2527/10; C07C2527/125; C07C2527/126; C07C2527/128; C07C2527/132; C07C2527/133; C07C2527/135; C07C2527/138
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) | 1947-05-23 | 1947-11-22 | 1948-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-23 | 1951-11-22 | 1952-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-23 | 1955-11-22 | 1956-05-23 | $7700.00 | Window Closed / Lapsed |