US3267649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve filters and cleaning means therefor
Assignee: Individual
•
Filing: 1964-11-10
•
Granted: 1966-08-23
•
Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Vicard Pierre Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:35
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/117; B01D29/50; B01D29/52; B01D29/62; B01D29/66; B01D29/668; B01D29/88; B01D29/90; B01D29/902; B01D46/00; B01D46/02; B01D46/04; B01D46/42; B01D46/4272; B01D46/66; B01D46/70; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE838108C
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US735904A
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US1349480A
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US2201301A
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US2506273A
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GB737457A
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FR1118340A
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US2853151A
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US2868320A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |