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US2903052A
Expired / Lapsed
US
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Safety controls for gas-fired industrial burners
Assignee: Riverside Bank
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Filing: 1955-06-01
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Granted: 1959-09-08
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Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Fred B Aubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:17
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/12; F23N5/123; F23N5/22; F23N2227/00; F23N2227/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2296340A
Cited
US2386648A
Cited
US2427178A
Cited
US2527286A
Cited
GB638267A
Cited
GB702890A
Cited
US2755852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |