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US687423A
Expired / Lapsed
US
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Oil-filter.
Assignee: VICTORY OIL FILTER Co
•
Filing: 1901-01-23
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Granted: 1901-11-26
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Expires: 1921-01-23
Abstract
No abstract record available.
Inventors
- 👤 William H De Witt
- 👤 Charles Scudder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:50
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1242
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) | 1904-11-25 | 1905-05-27 | 1905-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-11-25 | 1909-05-27 | 1909-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-11-25 | 1913-05-27 | 1913-11-26 | $7700.00 | Window Closed / Lapsed |