US3402122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of an absorption medium for hydrocarbon recovery
Assignee: Universal Oil Products Co
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Filing: 1966-12-05
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Granted: 1968-09-17
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Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Bennett L Atwater
- 👤 Penisten J Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:37
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |