Patent US3381531A successfully refreshed from Google Patents.
US3381531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orbital ball flowmeter with bypass
Assignee: NAUCHNO-ISSLEDOVATELSKY INSTITUT TEPLOENERGETICHESKOGO PRIBOROSTROCNIA
•
Filing: 1965-08-03
•
Granted: 1968-05-07
•
Expires: 1985-08-03
Abstract
No abstract record available.
Inventors
- 👤 Arutjunov Konstant Bagratovich
- 👤 Iordan Georgy Genrikhovich
- 👤 Rukhadze Vilgeny Alexandrovich
- 👤 Shonin Leonid Nikolaevich
- 👤 Komarov Jury Alexandrovich
- 👤 Ivanov Igor Nikolaevich
- 👤 Konoplev Jury Sergeevich
- 👤 Silin Mikhail Danilovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |