US3614873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freezing oil spills
Assignee: Texaco Inc
•
Filing: 1969-10-01
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Granted: 1971-10-26
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Expires: 1989-10-01
Abstract
Abstract CLEANING UP MARINE OIL SPILLS BY FREEZING THE SURFACE LAYER OF OIL, PREFERABLY WITH PARTICLESS OF DRY ICE OR THE LIKE, TO ENABLE THE LAYER TO BE SCREENED OFF THE SURFACE AS A CAKE.
Inventors
- 👤 Edward L Cole
- 👤 Howard V Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:26
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/041; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |