US3087849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid filtering device
Assignee: ACF Industries Inc
•
Filing: 1959-08-04
•
Granted: 1963-04-30
•
Expires: 1979-08-04
Abstract
No abstract record available.
Inventors
- 👤 Russell F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:53
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/005; B01D27/00; B01D27/04; B01D27/06; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1612526A
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US2202403A
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US2274113A
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US2288532A
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US2354481A
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US2525287A
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US2584206A
Cited
US2683536A
Cited
DE958467C
Cited
US2776055A
Cited
US2879207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |