Patent US3512155A successfully refreshed from Google Patents.
US3512155A
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US
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Doppler apparatus
Assignee: Memco Ltd
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Filing: 1968-07-01
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Granted: 1970-05-12
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Expires: 1988-07-01
Abstract
No abstract record available.
Inventors
- 👤 John Anthony Bloice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:46
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/56; G08; G08B; G08B13/00; G08B13/22; G08B13/24; H; H03; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2805335A
Cited
US2859435A
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US3187329A
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US3181151A
Cited
US3423753A
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US3383678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |