Patent US2964103A successfully refreshed from Google Patents.
US2964103A
Expired / Lapsed
US
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Quiet operating combustion heater
Assignee: Stewart Warner Corp
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Filing: 1959-02-12
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Granted: 1960-12-13
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Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Frank A Ryder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:29
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/40; F23D11/402
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1261281A
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CH186082A
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US2253414A
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US2402971A
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US2505336A
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US2607193A
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GB666176A
Cited
US2722180A
Cited
US2673726A
Cited
US2780062A
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US2692014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |