Patent US2952404A successfully refreshed from Google Patents.
US2952404A
Expired / Lapsed
US
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Blower wheel assembly
Assignee: The Brundage Co
•
Filing: 1957-04-12
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Granted: 1960-09-13
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Expires: 1977-04-12
Abstract
No abstract record available.
Inventors
- 👤 Harold A Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:29
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/28; F04D29/281; F04D29/282; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/49472
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1877347A
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US2181592A
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US2474298A
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US2537805A
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US2495855A
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US2745171A
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US2626741A
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US2714485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |