Patent US3200820A successfully refreshed from Google Patents.
US3200820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy collector
Assignee: Individual
•
Filing: 1962-04-05
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Granted: 1965-08-17
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Expires: 1982-04-05
Abstract
No abstract record available.
Inventors
- 👤 Garrett Robert Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:06
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/50; F24S10/505; F24S23/00; F24S23/70; F24S23/71; F24S23/77; F24S23/79; F24S30/00; F24S30/40; F24S80/00; F24S80/50; F24S80/52; F24S80/525; F24S80/56; F24S80/58; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y02E10/47; Y10; Y10S; Y10S126/00; Y10S126/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SOLAR HEAT COLLECTOR COMPRISING A TRANSPARENT PARABOLIC FILM, A DARKENED FILM UNDERLYING SAID TRANSPARENT FILM, MEANS SUPPORTING SAID FILMS TO RECEIVE SOLAR RADIATION, MEANS FORMING FLUID FLOW PASSAGES BETWEEN AND IN HEAT EXCHANGE RELATION WITH SAID FILMS, MEANS FOR PASSING HEAT EXCHANGE FLUID THROUGH SAID PASSAGE, AND REFLECTOR MEANS SPACED FORWARDLY OF SAID TRANSPARENT FILM FOR RETURNING TO SAID FILM SOLAR RAYS REFLECTED FROM SAID TRANSPARENT FILM.
Claim 2
Dependent Claim
68 words
A SOLAR HEAT COLLECTOR COMPRISING A TRANSPARENT PARABOLIC FILM, A DARKENED FILM UNDERLYING SAID TRANSPARENT FILM, MEANS SUPPORTING SAID FILMS TO RECEIVE SOLAR RADIATION, MEANS FORMING FLUID FLOW PASSAGES BETWEEN AND IN HEAT EXCHANGE RELATION WITH SAID FILMS, MEANS FOR PASSING HEAT EXCHANGE FLUID THROUGH SAID PASSAGE, AND REFLECTOR MEANS SPACED FORWARDLY OF SAID TRANSPARENT FILM FOR RETURNING TO SAID FILM SOLAR RAYS REFLECTED FROM SAID TRANSPARENT FILM.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |