US3546112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption oil skimmer
Assignee: Standard Oil Co
•
Filing: 1968-01-29
•
Granted: 1970-12-08
•
Expires: 1988-01-29
Abstract
No abstract record available.
Inventors
- 👤 Robert G Will
- 👤 William F Swiss Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:18
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/103; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2866827A
Cited
US2860973A
Cited
US3314545A
Cited
GB1026201A
Cited
US3334042A
Cited
US3426902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |