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Patent US3052844A successfully refreshed from Google Patents.
US3052844A
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US
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Double scale phase meter
Assignee: Motors Liquidation Co
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Filing: 1959-08-20
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Granted: 1962-09-04
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Expires: 1979-08-20
Abstract
No abstract record available.
Inventors
- 👤 John H Varterasian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:03
CPC Classifications
G; G01; G01R; G01R25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB575594A
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US2625589A
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US2725528A
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GB701941A
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US2858425A
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US2760155A
Cited
CH336900A
Cited
US2904683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |