US3431935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for use in the measurement of fluid flow
Assignee: Schneider Electric Systems USA Inc
•
Filing: 1965-10-23
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Granted: 1969-03-11
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Hoel L Bowditch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:48
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/0007; G01L19/0015; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/38; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/8774; Y10T137/9029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1542571A
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US2807281A
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US3169402A
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US3310069A
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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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |