US2600928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: WHEELCO INSTR Co
•
Filing: 1948-11-30
•
Granted: 1952-06-17
•
Expires: 1968-11-30
Abstract
No abstract record available.
Inventors
- 👤 Paul T Semm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:59
CPC Classifications
F; F23; F23M; F23M11/00; F23M11/04; F23M11/045; F23N; F23N5/00; F23N5/02; F23N5/12; F23N5/123; Y; Y10; Y10T; Y10T137/00; Y10T137/1407
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR609988A
Cited
US1809280A
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US1880871A
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US2127977A
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US2343001A
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US2266114A
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US2324821A
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US2333001A
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US2324330A
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US2433599A
Cited
US2381155A
Cited
US2438550A
Cited
US2468138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |