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US2522337A
Expired / Lapsed
US
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Mach meter
Assignee: Schneider Electric USA Inc
•
Filing: 1944-12-09
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Granted: 1950-09-12
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Expires: 1964-12-09
Abstract
No abstract record available.
Inventors
- 👤 Angst Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:19
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/14; G01P5/16; G01P5/17; G01P5/175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2379328A
Cited
FR532638A
Cited
US1489463A
Cited
GB217358A
Cited
US2177244A
Cited
FR823949A
Cited
US2302713A
Cited
US2385845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |