Patent US1981164A successfully refreshed from Google Patents.
US3450086A
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US
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Method for disposal of crude oil residues
Assignee: Cities Service Tankers Corp
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Filing: 1967-11-22
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Granted: 1969-06-17
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Expires: 1987-11-22
Abstract
No abstract record available.
Inventors
- 👤 Edward G Maddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:10
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B63; B63B; B63B57/00; B63B57/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |