Patent US3326263A successfully refreshed from Google Patents.
US3326263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for combustion of fuel-air mixtures
Assignee: Individual
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Filing: 1964-10-15
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Granted: 1967-06-20
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Expires: 1984-10-15
Abstract
No abstract record available.
Inventors
- 👤 William C Milligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:06
CPC Classifications
F; F23; F23C; F23C13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A CATALYTIC HEATER UNIT COMPRISING A HOUSING, MEANS FOR INTRODUCING FUEL AND A COMBUSTION PROMOTING GAS INTO SAID HOUSING FOR COMBUSTION THEREIN, AND A PLURALITY OF INFRARED RADIATING, COMBUSTION PROMOTING CATALYTIC SURFACES IN CONFRONTING RELATION DEFINING CHANNELS FOR THE PASSAGE OF COMBUSTION GASES THROUGH SAID HOUSING, THE ENTIRE PERIPHERY OF SAID CHANNELS BEING NON-PLANAR, UNDULATING SURFACES PROVIDING FOR EXTENDING REFLECTION OF INFRARED RADIATION THEREBETWEEN, SOME OF SAID SURFACES HAVING OPENINGS THEREIN COMMUNICATING SAID CHANNELS TO ADJOINING CHANNELS.
Claim 2
Dependent Claim
77 words
A CATALYTIC HEATER UNIT COMPRISING A HOUSING, MEANS FOR INTRODUCING FUEL AND A COMBUSTION PROMOTING GAS INTO SAID HOUSING FOR COMBUSTION THEREIN, AND A PLURALITY OF INFRARED RADIATING, COMBUSTION PROMOTING CATALYTIC SURFACES IN CONFRONTING RELATION DEFINING CHANNELS FOR THE PASSAGE OF COMBUSTION GASES THROUGH SAID HOUSING, THE ENTIRE PERIPHERY OF SAID CHANNELS BEING NON-PLANAR, UNDULATING SURFACES PROVIDING FOR EXTENDING REFLECTION OF INFRARED RADIATION THEREBETWEEN, SOME OF SAID SURFACES HAVING OPENINGS THEREIN COMMUNICATING SAID CHANNELS TO ADJOINING CHANNELS.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |