US3141089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared heater
Assignee: COMAC ENGINEERING Inc
•
Filing: 1961-05-03
•
Granted: 1964-07-14
•
Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Hultgreen Odd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
H; H05; H05B; H05B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN INFRARED HEATING UNIT COMPRISING A HOUSING HAVING AN OPENING FOR PASSAGE OF INFRARED RADIATION, PLATE MEANS IN THE HOUSING DEFINING THEREWITH A SUBSTANTIALLY CLOSED CHAMBER, BRACKET MEANS MOUNTING SAID PLATE MEANS FOR SLIDING MOVEMENTS IN THE HOUSING, ELECTRICALLY OPERABLE INFRARED EMITTER MEANS LOCATED AT A SIDE OF SAID PLATE MEANS OPPOSITE SAID CHAMBER AND POSITIONED FOR PASSAGE OF INFRARED RADIATION FROM SAID EMITTER MEANS THROUGH SAID OPENING, SAID SLIDABLE PLATE MEANS FORMING A SLOT LEADING FROM SAID CHAMBER IN THE DIRECTION OF SAID OPENING AND SPACED FROM SAID EMITTER MEANS, SAID CHAM-
Claim 2
Dependent Claim
93 words
AN INFRARED HEATING UNIT COMPRISING A HOUSING HAVING AN OPENING FOR PASSAGE OF INFRARED RADIATION, PLATE MEANS IN THE HOUSING DEFINING THEREWITH A SUBSTANTIALLY CLOSED CHAMBER, BRACKET MEANS MOUNTING SAID PLATE MEANS FOR SLIDING MOVEMENTS IN THE HOUSING, ELECTRICALLY OPERABLE INFRARED EMITTER MEANS LOCATED AT A SIDE OF SAID PLATE MEANS OPPOSITE SAID CHAMBER AND POSITIONED FOR PASSAGE OF INFRARED RADIATION FROM SAID EMITTER MEANS THROUGH SAID OPENING, SAID SLIDABLE PLATE MEANS FORMING A SLOT LEADING FROM SAID CHAMBER IN THE DIRECTION OF SAID OPENING AND SPACED FROM SAID EMITTER MEANS, SAID CHAM-
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |