Patent US2665055A successfully refreshed from Google Patents.
US2665055A
Expired / Lapsed
US
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Adjustable blade fan
Assignee: Joy Manufacturing Co
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Filing: 1947-11-04
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Granted: 1954-01-05
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Expires: 1967-11-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas O Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:29
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/34; F04D29/36; F04D29/40; F04D29/52; F04D29/522; F04D29/526
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1456699A
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US1935314A
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US2232670A
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US2341974A
Cited
US2350383A
Cited
US2382535A
Cited
GB567978A
Cited
US2607430A
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US2495434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |