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US2496602A
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US
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Air-conditioning system
Assignee: Individual
•
Filing: 1946-01-29
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Granted: 1950-02-07
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Expires: 1966-01-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Schlichtig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:11
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1417; F24F3/147; F25; F25B; F25B9/00; F25B9/002; F25B9/004; F24F2003/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1883024A
Cited
US935743A
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US879392A
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US1781062A
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US1965733A
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US2133334A
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US2186844A
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US2222882A
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US2419477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |