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US2801793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan blade
Assignee: McGraw Edison Co
•
Filing: 1955-07-21
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Granted: 1957-08-06
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Expires: 1975-07-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/325; F04D29/329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1620875A
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US1977072A
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US2073868A
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GB478417A
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US2262695A
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US2585265A
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US2622793A
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US2590877A
Cited
US2731193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |