US3684733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelation of liquid hydrocarbons
Assignee: ALICE SIAS MEMORIAL LAB
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Filing: 1970-09-18
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Granted: 1972-08-15
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Expires: 1990-09-18
Abstract
Abstract A METHOD FOR GELLING NORMALLY LIQUID HYDROCARBONS, AND THE COMPOSITIONS PRODUCED BY THE METHOD, WHEREIN NORMALLY LIQUID HYDROCARBONS ARE MIXED WITH PRIMARY OR SECONDARY AMINES AND REACTED WITH CARBON DIOXIDE (IN SOME CASES REQUIRING A CATALYTIC AMOUNT OF WATER).
Inventors
- 👤 William W Bannister
- 👤 John R Pennace
- 👤 William A Curby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:26
CPC Classifications
C; C10; C10L; C10L7/00; C10L7/02
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |