Patent US3004484A successfully refreshed from Google Patents.
US3004484A
Expired / Lapsed
US
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Fan control
Assignee: Trane Co
•
Filing: 1958-09-22
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Granted: 1961-10-17
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Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 John W Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:06
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/30; F24F11/49
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1917340A
Cited
US2068426A
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US2091562A
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US2084807A
Cited
US2228224A
Cited
US2632377A
Cited
US2855795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |