Patent US3205343A successfully refreshed from Google Patents.
US3205343A
Expired / Lapsed
US
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Blackbody source
Assignee: North American Aviation Corp
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Filing: 1962-10-19
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Granted: 1965-09-07
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Expires: 1982-10-19
Abstract
No abstract record available.
Inventors
- 👤 Bell Arthur G De
- 👤 Quinn S Anderson
- 👤 Frederick S Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:28
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H05B3/145; G; G01; G01J; G01J5/00; G01J5/52; G01J5/53
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A BLACKBODY RADIATION DEVICE COMPRISING: A HOUSING PROVIDED WITH A LATERAL APERTURE FOR EMITTING RADIATION, A TUBULAR-WALLED BLACKBODY RADIATION ELEMENT DISPOSED COAXIALLY WITHIN SAID HOUSING ABOUT THE CENTER AXIS THEREOF, SAID ELEMENT BEING CLOSED AT ITS ENDS, SAID ELEMENT PROVIDED WITH AN OPENING THEREIN ALIGNED WITH SAID HOUSING APERTURE FOR EMITTING RADIATION THERETHROUGH FROM THE INTERIOR OF SAID ELEMENT, MEANS AFFIXED TO ONE END OF SAID ELEMENT FOR RELIEVING THERMAL LINEAR EXPANSION THEREOF, AND MEANS FOR CONDUCTING ELECTRICAL CURRENT TO SAID ELEMENT.
Claim 2
Dependent Claim
82 words
A BLACKBODY RADIATION DEVICE COMPRISING: A HOUSING PROVIDED WITH A LATERAL APERTURE FOR EMITTING RADIATION, A TUBULAR-WALLED BLACKBODY RADIATION ELEMENT DISPOSED COAXIALLY WITHIN SAID HOUSING ABOUT THE CENTER AXIS THEREOF, SAID ELEMENT BEING CLOSED AT ITS ENDS, SAID ELEMENT PROVIDED WITH AN OPENING THEREIN ALIGNED WITH SAID HOUSING APERTURE FOR EMITTING RADIATION THERETHROUGH FROM THE INTERIOR OF SAID ELEMENT, MEANS AFFIXED TO ONE END OF SAID ELEMENT FOR RELIEVING THERMAL LINEAR EXPANSION THEREOF, AND MEANS FOR CONDUCTING ELECTRICAL CURRENT TO SAID ELEMENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |