Patent US2717945A successfully refreshed from Google Patents.
US2685244A
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US
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Air conditioning system
Assignee: American Motors Corp
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Filing: 1950-02-25
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Granted: 1954-08-03
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Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 Wahlberg Nils Erik
- 👤 Joseph F Sladky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:28
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/24; B60H1/26; B60H1/28; B60H1/00007; B60H1/00021; B60H1/00035; B60H1/00042; B60H2001/00078; B60H2001/00085; B60H2001/0015; B60H2001/00157; B60H2001/00171; B60H3/00; B60H3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011840A
Cited
US2235642A
Cited
US2185486A
Cited
US2237333A
Cited
US2237477A
Cited
US2213017A
Cited
US2257638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |