US2987242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient fan guard support
Assignee: General Electric Co
•
Filing: 1957-10-29
•
Granted: 1961-06-06
•
Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert W Mazzacane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:50
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/70; F04D29/701; F04D29/703; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/219
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2096621A
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US2115653A
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US2258325A
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US2367449A
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US2361184A
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US2601947A
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US2650019A
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US2605959A
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US2656974A
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US2728541A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |