Patent US2343633A successfully refreshed from Google Patents.
Patent US3039302A successfully refreshed from Google Patents.
US3039302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow measuring means
Assignee: BJ Service Inc
•
Filing: 1958-12-15
•
Granted: 1962-06-19
•
Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Dale E Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:38
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/10; G01F1/106; E; E21; E21B; E21B47/00; E21B47/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US332910A
Cited
US576425A
Cited
US1662429A
Cited
US1852414A
Cited
US2245759A
Cited
US2334920A
Cited
US2770131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |