US2433104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-conditioning apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1944-06-24
•
Granted: 1947-12-23
•
Expires: 1964-06-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Eberhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:49
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2234771A
Cited
US935021A
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US1938797A
Cited
US1954017A
Cited
US2052453A
Cited
US2059616A
Cited
US2296635A
Cited
US2316704A
Cited
US2294664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |