Patent US3999123A successfully refreshed from Google Patents.
US3250269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar heat device
Assignee: Individual
•
Filing: 1965-06-03
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Granted: 1966-05-10
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Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Duane M Sherock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0046; F24D; F24D11/00; F24D11/006; F24D11/007; F24D3/00; F24D3/005; F24S; F24S10/00; F24S10/20; F24S10/70; F24S10/74; F24S60/00; F24S60/30; F24S80/00; F24S2080/01; F24S2080/018; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A SOLAR HEAT EXCHANGE SYSTEM THE COMBINATION OF A RECEPTACLE HAVING AT LEAST ONE TRANSPARENT WALL, EXPOSED TO THE RAYS OF THE SUN, A LIQUID IN SAID RECEPTACLE, A LIQUID STORAGE CONTAINER, PIPE MEANS DEFINING A FIRST LIQUID CIRCUIT IN COMMUNICATION WITH THE INTERIORS OF SAID RECEPTACLE AND SAID CONTAINER, EXTENSIONS ON SAID PIPE MEANS FOR CONNECTING TO AREA HEATING DEVICES, AND MEANS TO CONTROL THE FLOW OF LIQUID IN SAID FIRST CIRCUIT, A SECOND LIQUID CIRCUIT INCLUDING PIPE MEANS EXTENDING THROUGH
Claim 2
Dependent Claim
83 words
IN A SOLAR HEAT EXCHANGE SYSTEM THE COMBINATION OF A RECEPTACLE HAVING AT LEAST ONE TRANSPARENT WALL, EXPOSED TO THE RAYS OF THE SUN, A LIQUID IN SAID RECEPTACLE, A LIQUID STORAGE CONTAINER, PIPE MEANS DEFINING A FIRST LIQUID CIRCUIT IN COMMUNICATION WITH THE INTERIORS OF SAID RECEPTACLE AND SAID CONTAINER, EXTENSIONS ON SAID PIPE MEANS FOR CONNECTING TO AREA HEATING DEVICES, AND MEANS TO CONTROL THE FLOW OF LIQUID IN SAID FIRST CIRCUIT, A SECOND LIQUID CIRCUIT INCLUDING PIPE MEANS EXTENDING THROUGH
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |