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US2757538A
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Flowmeter signal-balancing means
Assignee: Vitro Corp of America
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Filing: 1952-04-21
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Granted: 1956-08-07
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Expires: 1972-04-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Soffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:48
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/56; G01F1/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2607223A
Cited
US2696737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |