US3425280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic instrument for measuring fluid flow past fluid pressure sensing means
Assignee: Marine Industries Inc
•
Filing: 1966-09-13
•
Granted: 1969-02-04
•
Expires: 1986-09-13
Abstract
No abstract record available.
Inventors
- 👤 Merrill J Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2325884A
Cited
US2358571A
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US2447863A
Cited
US2609686A
Cited
US2604528A
Cited
US3035449A
Cited
US3046792A
Cited
US3253153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |