Patent US2638729A successfully refreshed from Google Patents.
US2638729A
Expired / Lapsed
US
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Wheel supporting spindle for rotating cutting reel type mowers
Assignee: Individual
•
Filing: 1949-09-23
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Granted: 1953-05-19
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Expires: 1969-09-23
Abstract
No abstract record available.
Inventors
- 👤 Bourg Alex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:42
CPC Classifications
A; A01; A01D; A01D42/00; A01D42/06; A01D42/08; A01D2101/00; A01D34/00; A01D34/01; A01D34/412; A01D34/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1745903A
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US2051443A
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US2145738A
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US2204254A
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US2176175A
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US2171075A
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US2445797A
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US2431580A
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US2566724A
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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) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |