US3452169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow measuring device
Assignee: PACIFIC PUMPING CO
•
Filing: 1967-02-20
•
Granted: 1969-06-24
•
Expires: 1987-02-20
Abstract
No abstract record available.
Inventors
- 👤 George S Ruxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US534631A
Cited
US1905146A
Cited
US2203331A
Cited
US2293574A
Cited
US2687457A
Cited
US2790042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |