Patent US2065873A successfully refreshed from Google Patents.
US2065873A
Expired / Lapsed
US
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Heating and ventilation
Assignee: YORK ICE MACHINERY Corp
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Filing: 1933-03-17
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Granted: 1936-12-29
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Expires: 1953-03-17
Abstract
No abstract record available.
Inventors
- 👤 Alonzo W Ruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:42
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/037; F24F1/0007; F24F1/0059; F24F1/0067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-12-29 | 1940-06-29 | 1940-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-29 | 1944-06-29 | 1944-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-29 | 1948-06-29 | 1948-12-29 | $7700.00 | Window Closed / Lapsed |