US3513977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lint pot for swimming pool filter
Assignee: Marine Swimming Pool Equipment Co
•
Filing: 1969-01-27
•
Granted: 1970-05-26
•
Expires: 1989-01-27
Abstract
No abstract record available.
Inventors
- 👤 Bernard Bellinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:39
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/117; B01D29/96; B01D35/00; B01D35/14; B01D35/143; B01D35/30; B01D2201/00; B01D2201/30; B01D2201/301; B01D2201/304; B01D2201/309
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1832776A
Cited
US2039281A
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US2722316A
Cited
US2792116A
Cited
US3129172A
Cited
US3173865A
Cited
US3252575A
Cited
US3365064A
Cited
US3401116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |