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US3820172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool cleaning apparatus
Assignee: Individual
•
Filing: 1972-10-02
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Granted: 1974-06-28
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Expires: 1992-10-02
Abstract
Abstract FLEXIBLE SWEEP HOSES FOR USE IN SWIMMING POOLS FOR CLEANING PURPOSES WHICH ARE PROVIDED WITH SPECIALLY CONSTRUCTED HIGH VELOCITY, MULTI-JET CLEANING NOZZLES AT THEIR OUTER ENDS AND A PLURALITY OF LONG-LASTING, ADJUSTABLY POSITIONED WEAR RINGS SURROUNDING THE FLEXIBLE HOSES IN STRATEGIC LOCATIONS TO PREVENT EXCESSIVE HOSE WEAR. THE HOSES ARE DEMOUNTABLY CONNECTED TO QUICK DISCONNECT PLUG OUTLETS IN THE POOL WALLS OR ASSOCIATED CLEANING APPARATUS FOR THE POOL.
Inventors
- 👤 R Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:30
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1681; B; B05; B05B; B05B1/00; B05B1/14; B05B1/1421; B05B1/1422
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |