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Patent US2951632A successfully refreshed from Google Patents.
US2951632A
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US
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Air blower
Assignee: GOOD ROADS MACHINERY CORP
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Filing: 1955-11-21
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Granted: 1960-09-06
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Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 Harry I Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:45
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0827; E01H1/0836; F; F04; F04D; F04D23/00; F04D23/001; F04D23/003; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/422
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US353994A
Cited
GB191214668A
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US1291037A
Cited
US1873386A
Cited
US1787655A
Cited
US1875881A
Cited
US2160666A
Cited
US2184384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |