Patent US2835476A successfully refreshed from Google Patents.
US2835476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning apparatus
Assignee: Individual
•
Filing: 1954-06-18
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Granted: 1958-05-20
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Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Jr John Kohut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:09
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/76; F24F11/80; F24F11/81; F24F11/88; F24F3/00; F24F3/12; F24F3/14; F24F3/1405; F24F11/30; F24F2110/00; F24F2110/10; F24F2110/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1673732A
Cited
US1915994A
Cited
US1889895A
Cited
US2008407A
Cited
US2185394A
Cited
US2142289A
Cited
US2110693A
Cited
US2484127A
Cited
US2718119A
Cited
US2752124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |