Patent US3048275A successfully refreshed from Google Patents.
US3048275A
Expired / Lapsed
US
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Filter-water separator
Assignee: Bowser Inc
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Filing: 1957-08-13
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Granted: 1962-08-07
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Expires: 1977-08-13
Abstract
No abstract record available.
Inventors
- 👤 Richard T Headrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:56
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045; B01D17/08; B01D17/10; Y; Y10; Y10S; Y10S210/00; Y10S210/05; Y10S55/00; Y10S55/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2404872A
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US2555607A
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US2556722A
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US2626709A
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US2609932A
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US2597475A
Cited
US2725986A
Cited
US2657808A
Cited
US2770367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |