Patent US2580556A successfully refreshed from Google Patents.
US2580556A
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US
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Centrifugal governor
Assignee: Allis Chalmers Corp
•
Filing: 1945-09-07
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Granted: 1952-01-01
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Expires: 1965-09-07
Abstract
No abstract record available.
Inventors
- 👤 Edward M Kuemmerlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:28
CPC Classifications
G; G05; G05D; G05D13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US742874A
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US984439A
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US959471A
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US1096386A
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US1274643A
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US1371767A
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US2177063A
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US2219229A
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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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |