US3381823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High flow sand gravel type filter
Assignee: Jacuzzi Brothers Inc
•
Filing: 1965-10-13
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Granted: 1968-05-07
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Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Floyd M Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:42
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/02; B01D24/10; B01D24/14; B01D24/46; B01D24/4631; B01D24/4642; B01D24/4694
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US347203A
Cited
US862156A
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US2072393A
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US2681147A
Cited
US2855364A
Cited
US3011643A
Cited
US3202286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |