US2134390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing acid oils
Assignee: Shell Development Co
•
Filing: 1936-07-21
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Granted: 1938-10-25
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Expires: 1956-07-21
Abstract
No abstract record available.
Inventors
- 👤 Greensfelder Bernard Sutro
- 👤 Spaght Edward
- 👤 Britten Clyde Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:13
CPC Classifications
C; C10; C10G; C10G11/00; C07; C07C; C07C37/00; C07C37/68; C07C37/70; C07C37/72; C10G11/10; C10G19/00; C10G19/02
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) | 1941-10-24 | 1942-04-25 | 1942-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-24 | 1946-04-25 | 1946-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-24 | 1950-04-25 | 1950-10-25 | $7700.00 | Window Closed / Lapsed |