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US2932956A
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US
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Air-conditioning apparatus of the induction type
Assignee: Individual
•
Filing: 1958-07-01
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Granted: 1960-04-19
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Expires: 1978-07-01
Abstract
No abstract record available.
Inventors
- 👤 Chieregatti Luigi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:32
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/01; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/80; F24F11/81; F24F11/89
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2324313A
Cited
GB784828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |