Patent US2507540A successfully refreshed from Google Patents.
US2507540A
Expired / Lapsed
US
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Hay gathering and feeding mechanism for hay balers
Assignee: Unisys Corp
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Filing: 1944-03-09
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Granted: 1950-05-16
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Expires: 1964-03-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin B Nolt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:07
CPC Classifications
A; A01; A01F; A01F15/00; A01F15/08; A01F15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US20772A
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US238849A
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US259427A
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USRE21571E
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US1680888A
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US1815327A
Cited
US1893506A
Cited
US2378107A
Cited
US2335764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |