US3510239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directional radiant heaters
Assignee: Individual
•
Filing: 1966-04-18
•
Granted: 1970-05-05
•
Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Maurice Partiot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/04; F24C3/042; F23; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/145; F23D14/151
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A RADIANT GAS HEATER ADAPTED TO DIRECT A CONCENTRATED BEAM OF RADIATION IN A PREFERRED DIRECTION AHEAD OF SAID BURNER AND COMPRISING IN COMBINATION: AT LEAST ONE GENERALLY PLANAR FORAMINOUS MEMBER, MEANS FOR CONDUCTING A COMBUSTIBLE GAS MIXTURE TO A COMBUSTION SURFACE OF SAID FORAMINOUS MEMBER FOR COMBUSTION ADJACENT SAID COMBUSTION SURFACE, SAID COMBUSTION SURFACE BEING FORMED IN PART OF SURFACES WHICH SLOPE AT ACUTE ANGLES RELATIVE TO A NORMAL TO THE PLANE OF SAID FORAMINOUS MEMBER, SAID SLOPING SURFACES BEING DISPOSED TO FORM A LOBAR RADIATION INTENSITY PATTERN HAVING MAXIMA AT ACUTE ANGLES TO EITHER SIDE OF SAID NORMAL,
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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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |