Patent US2967543A successfully refreshed from Google Patents.
US2967543A
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US
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Flow regulating valve
Assignee: W A Kates Co
•
Filing: 1955-06-01
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Granted: 1961-01-10
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Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Viergutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:56
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7754; Y10T137/7781; Y10T137/7784; Y10T137/7792
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |