Patent US535611A successfully refreshed from Google Patents.
US535611A
Expired / Lapsed
US
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Oil and gas separator
Assignee: —
•
Filing: —
•
Granted: 1895-03-12
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Expires: 1912-03-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:44
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/3028; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7326; Y10T137/7358; Y10T137/7407; Y10T137/741
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) | 1898-03-11 | 1898-09-10 | 1899-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-03-12 | 1902-09-11 | 1903-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-03-12 | 1906-09-11 | 1907-03-13 | $7700.00 | Window Closed / Lapsed |