US2714819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multitube average velocity manometer
Assignee: Individual
•
Filing: 1952-06-13
•
Granted: 1955-08-09
•
Expires: 1972-06-13
Abstract
No abstract record available.
Inventors
- 👤 George B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1274101A
Cited
DE407441C
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US1584860A
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US1645449A
Cited
US1900823A
Cited
DE470819C
Cited
US2551526A
Cited
US2473717A
Cited
US2389508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |