Patent US972281A successfully refreshed from Google Patents.
US972281A
Expired / Lapsed
US
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Filtering apparatus for purifying gasolene and other liquid fuels.
Assignee: Individual
•
Filing: 1909-06-10
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Granted: 1910-10-11
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Expires: 1929-06-10
Abstract
No abstract record available.
Inventors
- 👤 Zeanith H Stamets
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:00
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/005; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309
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) | 1913-10-10 | 1914-04-11 | 1914-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-10-10 | 1918-04-11 | 1918-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-10-10 | 1922-04-11 | 1922-10-11 | $7700.00 | Window Closed / Lapsed |