Patent US3000227A successfully refreshed from Google Patents.
US3000227A
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US
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High pressure valve
Assignee: Monsanto Chemicals Ltd
•
Filing: 1957-06-27
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Granted: 1961-09-19
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Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Hugo H Buchter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:10
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/50; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US674696A
Cited
US1333357A
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US2270932A
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US2553991A
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US2524343A
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US2597709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |