US2685064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical measuring and indicating system
Assignee: Evershed and Vignoles Ltd
•
Filing: 1951-07-13
•
Granted: 1954-07-27
•
Expires: 1971-07-13
Abstract
No abstract record available.
Inventors
- 👤 Bergen Stephen Archbold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:06
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21806E
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US2573929A
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USRE20476E
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US2169116A
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US2400308A
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US2391271A
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US2443073A
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US2434544A
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US2505420A
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US2567276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |