Patent US2620125A successfully refreshed from Google Patents.
US2620125A
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Oscillation control means for automatic valves
Assignee: Sulzer AG
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Filing: 1945-07-03
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Granted: 1952-12-02
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Expires: 1965-07-03
Abstract
No abstract record available.
Inventors
- 👤 Kilchenmann Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:47
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/02; F04; F04B; F04B11/00; F04B11/0008; F04B11/0016; F04B11/0025; F04B39/00; F04B39/10; F04B39/102; F04B39/12; F04B53/00; F04B53/10; F04B53/102; F04B53/1035; F16K15/00; F16K15/02; F16K15/025; F16K15/026; F16K15/06; F16K15/063; F16K15/065; F16K47/01; F16K47/012; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB451193A
Cited
US1253535A
Cited
US1818375A
Cited
US2198021A
Cited
GB555944A
Cited
US2405100A
Cited
GB625091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |