Patent US3229682A successfully refreshed from Google Patents.
US3229682A
Expired / Lapsed
US
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Device for directionally controlling electromagnetic radiation
Assignee: Individual
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Filing: 1964-03-05
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Granted: 1966-01-18
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Expires: 1984-03-05
Abstract
No abstract record available.
Inventors
- 👤 Perlmutter Morris
- 👤 John R Howell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:55
CPC Classifications
H; H02; H02S; H02S40/00; H02S40/20; H02S40/22; H10; H10F; H10F99/00; F; F24; F24S; F24S23/00; F24S23/70; F24S23/75; F24S50/00; F24S50/80; F24S2023/83; F24S2023/834; F24S2023/87; F24S2023/872; Y; Y02; Y02E; Y02E10/00; Y02E10/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A DEVICE FOR EMITTING OR ABSORBING ELECTROMAGNETIC ENERGY COMPRISING A MAIN BODY MEMBER HAVING A CAVITY PORTION, SAID CAVITY PORTION HAVING INWARDLY CONVERGING SIDEWALLS OF HIGHLY REFLECTIVE MATERIAL, SAID CONVERGING SIDEWALLS BEING DIRECTED TOWARD A COMMON POINT OF INTERSECTION, SAID CONVERGING SIDEWALLS OF THE CAVITY PORTION FORMING AN ANGLE OF FIVE DEGREES AT SAID POINT OF INTERSECTION, AND A BLACK BODY MEMBER POSITIONED WITHIN SAID CAVITY PORTION AND SPACED UPWARD FROM THE COMMON POINT OF INTERSECTION A DISTANCE OF ONE-TENTH OF THE DEPTH OF THE CAVITY PORTION.
Claim 2
Independent Claim
87 words
A DEVICE FOR EMITTING OR ABSORBING ELECTROMAGNETIC ENERGY COMPRISING A MAIN BODY MEMBER HAVING A CAVITY PORTION, SAID CAVITY PORTION HAVING INWARDLY CONVERGING SIDEWALLS OF HIGHLY REFLECTIVE MATERIAL, SAID CONVERGING SIDEWALLS BEING DIRECTED TOWARD A COMMON POINT OF INTERSECTION, SAID CONVERGING SIDEWALLS OF THE CAVITY PORTION FORMING AN ANGLE OF FIVE DEGREES AT SAID POINT OF INTERSECTION, AND A BLACK BODY MEMBER POSITIONED WITHIN SAID CAVITY PORTION AND SPACED UPWARD FROM THE COMMON POINT OF INTERSECTION A DISTANCE OF ONE-TENTH OF THE DEPTH OF THE CAVITY PORTION.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |