Patent US3470700A successfully refreshed from Google Patents.
US3470700A
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Water turbulence producing air bubbling system for boat docks
Assignee: CLAIR J RHADIGAN
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Filing: 1967-12-06
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Granted: 1969-10-07
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Expires: 1987-12-06
Abstract
No abstract record available.
Inventors
- 👤 Robert L Quaine
- 👤 Clair J Rhadigan
- 👤 Sherwood T Rhadigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:55
CPC Classifications
E; E02; E02B; E02B1/00; E02B1/003; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2311; B01F23/23113; B01F23/23114; B01F23/231142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |