US2768782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric fan
Assignee: Individual
•
Filing: 1954-07-02
•
Granted: 1956-10-30
•
Expires: 1974-07-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur K Tateishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:37
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US708622A
Cited
US721157A
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DE642202C
Cited
GB451597A
Cited
US2037250A
Cited
US2103599A
Cited
US2135842A
Cited
US2336295A
Cited
US2606273A
Cited
US2650019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |