US3005341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital mass flow meter
Assignee: Individual
•
Filing: 1957-05-15
•
Granted: 1961-10-24
•
Expires: 1977-05-15
Abstract
No abstract record available.
Inventors
- 👤 Robert M Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76; G01F1/78; G01F1/80; G01F1/82; H; H03; H03M; H03M1/00; H03M1/12; H03M1/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2602330A
Cited
US2660886A
Cited
US2714310A
Cited
US2802104A
Cited
GB734992A
Cited
US2798156A
Cited
US2832218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |