Patent US2562748A successfully refreshed from Google Patents.
US2562748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat pump
Assignee: MUNCIE GEAR WORKS Inc
•
Filing: 1950-02-17
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Granted: 1951-07-31
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Expires: 1970-02-17
Abstract
No abstract record available.
Inventors
- 👤 Marvin M Smith
- 👤 Emory N Kemler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:05
CPC Classifications
F; F25; F25B; F25B29/00; F25B29/003; F25B13/00; F25B27/00; F25B30/00; F25B30/02; F25B2313/00; F25B2313/027; F25B2313/02791
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1969187A
Cited
US2096967A
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US2309165A
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US2266238A
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US2313439A
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US2468626A
Cited
US2461449A
Cited
US2513373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |