US2554633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air circulator
Assignee: TRADE WIND MOTORFANS Inc
•
Filing: 1945-08-21
•
Granted: 1951-05-29
•
Expires: 1965-08-21
Abstract
No abstract record available.
Inventors
- 👤 Andrew G Orear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:56
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/003; F24F8/00; F24F8/10; F24F8/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1019780A
Cited
US1019818A
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US1038625A
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US1713648A
Cited
US1959106A
Cited
US1916907A
Cited
US1990108A
Cited
US2139262A
Cited
US2265317A
Cited
US2285161A
Cited
US2373497A
Cited
US2359571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |