Patent US2547879A successfully refreshed from Google Patents.
US2547879A
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US
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Air-conditioning control arrangement
Assignee: Carrier Corp
•
Filing: 1944-06-28
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Granted: 1951-04-03
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Expires: 1964-06-28
Abstract
No abstract record available.
Inventors
- 👤 William L Mcgrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:18
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/80; F24F11/83; F24F11/84; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1795860A
Cited
US1958814A
Cited
US2154030A
Cited
US2112344A
Cited
US2230056A
Cited
US2342328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |