US2585265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan blade structure
Assignee: Knapp Monarch Co
•
Filing: 1945-04-10
•
Granted: 1952-02-12
•
Expires: 1965-04-10
Abstract
No abstract record available.
Inventors
- 👤 George L Moeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:52
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/38; F04D29/382; F04D29/02; F04D29/023; F04D29/325; F04D29/329; F05; F05D; F05D2300/00; F05D2300/40; F05D2300/43; Y; Y10; Y10S; Y10S416/00; Y10S416/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2234319A
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US2202042A
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US2251887A
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US2346552A
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US2370652A
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US2378049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |