US3072922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device for swimming pools
Assignee: Individual
•
Filing: 1961-10-25
•
Granted: 1963-01-15
•
Expires: 1981-10-25
Abstract
No abstract record available.
Inventors
- 👤 Pyke Harold Lesher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:31
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A DEVICE COMPRISING AN OUTER FLEXIBLE AND READILY COLLAPSIBLE TUBULAR MEMBER INITIALLY OPEN AT EACH END, AN INNER FLEXIBLE AND READILY COLLAPSIBLE TUBULAR MEMBER AT LEAST PARTIALLY RECEIVED WITHIN SAID OUTER MEMBER, SAID INNER TUBULAR MEMBER HAVING AN END PORTION PROTRUDING OUT THROUGH ONE OF THE OPEN ENDS OF SAID OUTER TUBULAR MEMBER, MEANS SECURING SAID OUTER TUBULAR MEMBER AT ITS ONE OPEN END TO SAID INNER TUBULAR MEMBER, SAID INNER TUBULAR MEMBER BEING CLOSED AT EACH END AND HAVING VALVE MEANS IN SAID PROTRUDING PORTION WHEREBY AIR MAY BE INSERTED INTO AND REMOVED FROM SAID INNER TUBULAR MEMBER, SAID OTHER END OF THE OUTER TUBULAR MEMBER HAVING MEANS TO RECEIVE ANTI-FREEZE SOLUTION THERETHROUGH FOR FILLING THE SPACE BETWEEN THE INNER AND OUTER TUBULAR MEMBERS, AND CLAMPING MEANS FOR SEALING OFF SAID LAST MENTIONED END OF THE OUTER TUBULAR MEMBER.
Claim 2
Independent Claim
140 words
A DEVICE COMPRISING AN OUTER FLEXIBLE AND READILY COLLAPSIBLE TUBULAR MEMBER INITIALLY OPEN AT EACH END, AN INNER FLEXIBLE AND READILY COLLAPSIBLE TUBULAR MEMBER AT LEAST PARTIALLY RECEIVED WITHIN SAID OUTER MEMBER, SAID INNER TUBULAR MEMBER HAVING AN END PORTION PROTRUDING OUT THROUGH ONE OF THE OPEN ENDS OF SAID OUTER TUBULAR MEMBER, MEANS SECURING SAID OUTER TUBULAR MEMBER AT ITS ONE OPEN END TO SAID INNER TUBULAR MEMBER, SAID INNER TUBULAR MEMBER BEING CLOSED AT EACH END AND HAVING VALVE MEANS IN SAID PROTRUDING PORTION WHEREBY AIR MAY BE INSERTED INTO AND REMOVED FROM SAID INNER TUBULAR MEMBER, SAID OTHER END OF THE OUTER TUBULAR MEMBER HAVING MEANS TO RECEIVE ANTI-FREEZE SOLUTION THERETHROUGH FOR FILLING THE SPACE BETWEEN THE INNER AND OUTER TUBULAR MEMBERS, AND CLAMPING MEANS FOR SEALING OFF SAID LAST MENTIONED END OF THE OUTER TUBULAR MEMBER.
References Cited (Backward Citations)
US85781A
Cited
US166713A
Cited
GB189510860A
Cited
US1007060A
Cited
US1380987A
Cited
US2243848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |