Patent US3425485A successfully refreshed from Google Patents.
US3425485A
Expired / Lapsed
US
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Air conditioning unit and pump for single pipe system
Assignee: York International Corp
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Filing: 1967-06-28
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Granted: 1969-02-04
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Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Alwin B Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:15
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0003; F24F11/00; F24F11/30; F24F11/70; F24F11/80; F24F11/83; F24F11/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |