Patent US2653308A successfully refreshed from Google Patents.
US2653308A
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Range shifting instrument
Assignee: Schneider Electric Systems USA Inc
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Filing: 1949-10-25
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Granted: 1953-09-22
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Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 Allen Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:11
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/16; G01K7/18; G01K7/20; G01K7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1661555A
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US1593626A
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US1784522A
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US2115834A
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US2208728A
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US2162093A
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US2291150A
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US2346121A
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US2458022A
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US2517455A
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US2439094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |