Patent US2960232A successfully refreshed from Google Patents.
US2960232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool filter
Assignee: Individual
•
Filing: 1958-12-15
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Granted: 1960-11-15
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Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Edward F Gillette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:02
CPC Classifications
B; B01; B01D; B01D27/00; B01D27/04; B01D27/06; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/50; B01D29/52; B01D37/00; B01D37/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427568A
Cited
US502690A
Cited
US550979A
Cited
US2362530A
Cited
US2548400A
Cited
US2736435A
Cited
US2874845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |