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Patent US2992808A successfully refreshed from Google Patents.
US2992808A
Expired / Lapsed
US
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Metering valve
Assignee: OSCAR C RIXSON CO
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Filing: 1958-10-06
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Granted: 1961-07-18
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Expires: 1978-10-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Silvius Burritt
- 👤 Herman P Pichler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:37
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/20; E; E05; E05F; E05F3/00; E05F3/04; E05F3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |