Patent US2649701A successfully refreshed from Google Patents.
US2649701A
Expired / Lapsed
US
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Air conditioning unit, including subcooling means
Assignee: Carrier Corp
•
Filing: 1950-07-01
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Granted: 1953-08-25
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Expires: 1970-07-01
Abstract
No abstract record available.
Inventors
- 👤 Signore James R Del
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:15
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/022; F24F13/00; F24F13/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2293360A
Cited
US2218597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |