Patent US3464068A successfully refreshed from Google Patents.
US3464068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool cleaning system
Assignee: Individual
•
Filing: 1967-05-02
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Granted: 1969-09-02
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Expires: 1987-05-02
Abstract
No abstract record available.
Inventors
- 👤 Brackston T Whitaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:46
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1681
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2332940A
Cited
FR1087901A
Cited
US2752195A
Cited
US2979733A
Cited
US3217886A
Cited
US3278949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |