US3270967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burners
Assignee: Geo Bray and Co Ltd
•
Filing: 1964-01-10
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Granted: 1966-09-06
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Expires: 1984-01-10
Abstract
No abstract record available.
Inventors
- 👤 Westerman Albert
- 👤 Harrison Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:08
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A GAS BURNER HAVING A PLURALITY OF SYMMETRICALLY ARRANGED FLAME PORTS EACH HAVING A DIAMETER OF THE ORDER OF 0.030 TO 0.0.60 OF AN INCH BEING FORMED IN A STRIP OF HEAT RESISTING METAL SUCH THAT EACH FLAME PORT DIAMETER IS BETWEEN 0.8 AND 2.0 TIMES THE THICKNESS OF THE METAL STRIP, THE FLAME PORTS BEING SPACED AT CENTERS OF BETWEEN 2 AND 4 TIMES THE FLAME PORT DIAMETER.
Claim 2
Dependent Claim
69 words
A GAS BURNER HAVING A PLURALITY OF SYMMETRICALLY ARRANGED FLAME PORTS EACH HAVING A DIAMETER OF THE ORDER OF 0.030 TO 0.0.60 OF AN INCH BEING FORMED IN A STRIP OF HEAT RESISTING METAL SUCH THAT EACH FLAME PORT DIAMETER IS BETWEEN 0.8 AND 2.0 TIMES THE THICKNESS OF THE METAL STRIP, THE FLAME PORTS BEING SPACED AT CENTERS OF BETWEEN 2 AND 4 TIMES THE FLAME PORT DIAMETER.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |