Patent US1394475A successfully refreshed from Google Patents.
Patent US3157775A successfully refreshed from Google Patents.
US3157775A
Expired / Lapsed
US
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Radiant heater
Assignee: Pyrometrics Inc
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Filing: 1961-05-03
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Granted: 1964-11-17
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Harmon Henry Neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:58
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0033; H05B3/009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A RADIANT HEATER, SAID HEATER COMPRISING A REFLECTOR AND A LAMP, SAID REFLECTOR HAVING A BASE AND TWO SPACEDAPART SIDES, A FIRST END SEAL AND A SECOND END SEAL, SAID LAMP BEING OF A ROD-LIKE CONFIGURATION AND HAVING A LONGITUDINAL DIMENSION LONGER THAN ITS CROSS-SECTIONAL DIMENSION, SAID LAMP HAVING AN EXTERNAL ELECTRODE AT EACH END, MEANS FOR SUPPORTING THE LAMPS BY THE END SEALS, A FIRST TUBE POSITIONED ADJACENT TO THE FIRST END SEAL AND HAVING MEANS TO DIRECT A COOLING GAS OVER THE EXTERNAL
Claim 2
Dependent Claim
85 words
A RADIANT HEATER, SAID HEATER COMPRISING A REFLECTOR AND A LAMP, SAID REFLECTOR HAVING A BASE AND TWO SPACEDAPART SIDES, A FIRST END SEAL AND A SECOND END SEAL, SAID LAMP BEING OF A ROD-LIKE CONFIGURATION AND HAVING A LONGITUDINAL DIMENSION LONGER THAN ITS CROSS-SECTIONAL DIMENSION, SAID LAMP HAVING AN EXTERNAL ELECTRODE AT EACH END, MEANS FOR SUPPORTING THE LAMPS BY THE END SEALS, A FIRST TUBE POSITIONED ADJACENT TO THE FIRST END SEAL AND HAVING MEANS TO DIRECT A COOLING GAS OVER THE EXTERNAL
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |