Patent US2641957A successfully refreshed from Google Patents.
US2641957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror and light beam wheel checking apparatus and method of correcting for run-out in employing same
Assignee: FMC Corp
•
Filing: 1948-07-14
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Granted: 1953-06-16
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Expires: 1968-07-14
Abstract
No abstract record available.
Inventors
- 👤 Myrton L Vandermeer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:12
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/26; G01B11/275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1412997A
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DE571714C
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GB484851A
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US2249226A
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US2292968A
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US2292969A
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US2346582A
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US2410339A
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US2470090A
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US2496324A
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US2478609A
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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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |