US3129565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for control of water beneath ice surfaces
Assignee: Individual
•
Filing: 1961-07-25
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Granted: 1964-04-21
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Expires: 1981-07-25
Abstract
No abstract record available.
Inventors
- 👤 Clifford A Bellamy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:35
CPC Classifications
E; E02; E02B; E02B1/00; E02B1/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN APPARATUS THAT IS ADAPTED TO CONTROL WATER BENEATH ICE SURFACES OF A BODY OF WATER, IN COMBINATION A SOURCE OF HEAT, AN INTAKE CONDUIT WITHIN SAID BODY OF WATER, PUMP MEANS, SAID PUMP MEANS BEING PROVIDED WITH A SUCTION AND A DISCHARGE PORT, SAID INTAKE CONDUIT BEING CONNECTED TO SAID SUCTION PORT, A DISCHARGE CONDUIT CONNECTED TO THE DISCHARGE PORT OF THE PUMP, SAID DISCHARGE CONDUIT ADAPTED TO DISCHARGE WATER UPON THE UPPER
Claim 2
Independent Claim
74 words
AN APPARATUS THAT IS ADAPTED TO CONTROL WATER BENEATH ICE SURFACES OF A BODY OF WATER, IN COMBINATION A SOURCE OF HEAT, AN INTAKE CONDUIT WITHIN SAID BODY OF WATER, PUMP MEANS, SAID PUMP MEANS BEING PROVIDED WITH A SUCTION AND A DISCHARGE PORT, SAID INTAKE CONDUIT BEING CONNECTED TO SAID SUCTION PORT, A DISCHARGE CONDUIT CONNECTED TO THE DISCHARGE PORT OF THE PUMP, SAID DISCHARGE CONDUIT ADAPTED TO DISCHARGE WATER UPON THE UPPER
References Cited (Backward Citations)
US454716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |