Patent US3430625A successfully refreshed from Google Patents.
US3430625A
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US
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Ultrasonic flowmeter for measuring blood flow
Assignee: Mennen Greatbatch Electronics Inc
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Filing: 1965-10-23
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Granted: 1969-03-04
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Francis D Mcleod Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:10
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/06; A61B8/12; G; G01; G01F; G01F1/00; G01F1/66; G01F1/663; A61B8/44; A61B8/4444; A61B8/445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733597A
Cited
US2770795A
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GB776526A
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US2908888A
Cited
FR1232113A
Cited
GB925541A
Cited
US3222926A
Cited
US3249105A
Cited
US3273447A
Cited
US3349762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |