US2523747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of gasoline from enriched absorber oils
Assignee: STEARNS ROGER Manufacturing CO
•
Filing: 1947-04-26
•
Granted: 1950-09-26
•
Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 John J Weatherby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:11
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/04; C10G2300/00; C10G2300/10; C10G2300/1025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972060A
Cited
US2157343A
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US2271761A
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US2333229A
Cited
US2388102A
Cited
US2409691A
Cited
US2386057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |