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US2854628A
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Arrangement for improving the indicating sensitivity of measuring or indicating devices
Assignee: US Philips Corp
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Filing: 1953-01-21
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Granted: 1958-09-30
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Expires: 1973-01-21
Abstract
No abstract record available.
Inventors
- 👤 Gude Helmuth Te
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:43
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2640866A
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US1275786A
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US2150398A
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US2302786A
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US2394196A
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US2603775A
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US2615367A
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US2520728A
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US2746352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |