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Patent US2869632A successfully refreshed from Google Patents.
US2869632A
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US
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Pressure gas burners
Assignee: Individual
•
Filing: 1953-02-09
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Granted: 1959-01-20
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Expires: 1973-02-09
Abstract
No abstract record available.
Inventors
- 👤 Bornkessel Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:01
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US622482A
Cited
FR961324A
Cited
US686625A
Cited
US1375664A
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US1448320A
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US1440614A
Cited
DE611221C
Cited
GB501517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |