US2633293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric fan
Assignee: CHARLES E JONES AND ASSOCIATES
•
Filing: 1948-12-02
•
Granted: 1953-03-31
•
Expires: 1968-12-02
Abstract
No abstract record available.
Inventors
- 👤 Charles E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:29
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/64; F04D29/644; F04D29/646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2001151A
Cited
US1996195A
Cited
US2056547A
Cited
US2073868A
Cited
US2345516A
Cited
US2453009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |