US3534859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removal of oil floating on water or the like
Assignee: Gulf Research and Development Co
•
Filing: 1969-03-11
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Granted: 1970-10-20
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Expires: 1989-03-11
Abstract
No abstract record available.
Inventors
- 👤 Robert C Amero
- 👤 Garnet L Karner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:25
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/106; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2497177A
Cited
US2778500A
Cited
DE1064367B
Cited
US2989185A
Cited
CH454047A
Cited
US3369664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |