US3498290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed doppler volumetric blood flowmeter
Assignee: LOUIS B LAMBERT
•
Filing: 1966-04-22
•
Granted: 1970-03-03
•
Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 Robert F Shaw
- 👤 Louis B Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:21
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/66; G01F1/663; A; A61; A61B; A61B8/00; A61B8/06; G01N; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02836
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |