US2446593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system
Assignee: Individual
•
Filing: 1943-12-16
•
Granted: 1948-08-10
•
Expires: 1963-12-16
Abstract
No abstract record available.
Inventors
- 👤 Sam C Jimopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:57
CPC Classifications
F; F24; F24F; F24F5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1714562A
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US1832638A
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US1830099A
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US2034700A
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US2141855A
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US2210960A
Cited
US2176174A
Cited
US2237831A
Cited
US2350497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |