US3035701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and separator for demulsified oil and water mixture and method of filtering and separating such mixtures
Assignee: Youngstown Sheet and Tube Co
•
Filing: 1956-09-07
•
Granted: 1962-05-22
•
Expires: 1976-09-07
Abstract
No abstract record available.
Inventors
- 👤 May Russell Denton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:25
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US386402A
Cited
US866454A
Cited
US1569695A
Cited
US1734834A
Cited
US1705370A
Cited
US1778286A
Cited
US1990293A
Cited
US2122310A
Cited
US2570977A
Cited
US2766890A
Cited
US2624462A
Cited
US2659488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |