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Patent US3477278A successfully refreshed from Google Patents.
US3477278A
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Ultrasonic measurement
Assignee: Parametrics Inc
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Filing: 1966-12-23
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Granted: 1969-11-11
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Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Lawrence C Lynnworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:12
CPC Classifications
G; G10; G10K; G10K15/00; G01; G01N; G01N29/00; G01N29/04; G01N29/043; G01N29/09; G01N2291/00; G01N2291/01; G01N2291/011; G01N2291/015; G01N2291/02; G01N2291/024; G01N2291/02416; G01N2291/04; G01N2291/042; G01N2291/0421; G01N2291/0422; G01N2291/0428; G01N2291/044; G01N2291/048; G01N2291/10; G01N2291/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2592135A
Cited
US2624804A
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US2527986A
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US2957142A
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US3302453A
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US3302044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |