US3401027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light hydrocarbon liquids containing a jellifying agent comprising polyureas
Assignee: Chevron USA Inc
•
Filing: 1967-04-10
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Granted: 1968-09-10
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Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 John L Dreher
- 👤 Dean W Criddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
C; C10; C10L; C10L7/00; C10L7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2710839A
Cited
US2710840A
Cited
US2971922A
Cited
US3012966A
Cited
US2993044A
Cited
US3243372A
Cited
US3242210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |