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US3272986A
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Solar heat absorbers comprising alternate layers of metal and dielectric material
Assignee: Honeywell Inc
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Filing: 1963-09-27
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Granted: 1966-09-13
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Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Roger N Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:52
CPC Classifications
F; F24; F24S; F24S70/00; F24S70/30; F24S70/20; F24S70/225; F24S70/25; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S126/00; Y10S126/907; Y10S126/908; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12833
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
A SOLAR HEAT ABSORBER EXHIBITING HIGH ABSORPTION IN THE SOLAR SPECTRAL REGION AND LOW EMISSIVITY IN THE INFRARED REGION COMPRISING: AN OPAQUE MOLYBDENUM SUBSTRATE; AND AT LEAST ONE DIELECTRIC FILM AND MOLYBDENUM FILM RESPECTIVELY PLACED THEREON IN LAMINAR RELATIONSHIP TO PROVIDE A SURFACE ADAPTED TO BE EXPOSED TO SOLAR RADIATION, SAID DIELECTRIC RANGING FROM 1/4$ AT 0.2 MICRON TO ABOUT 1/4$ AT 0.5 MICRON IN OPTICAL THICKNESS, SAID MOLYBDENUM FILM RANGING FROM ABOUT 500 OHMS/SQUARE TO ABOUT 2000 OHMS/SQUARE IN RESISTIVITY.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |