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US2485831A
Expired / Lapsed
US
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Plug cock valve
Assignee: Flowserve Corp
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Filing: 1944-06-24
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Granted: 1949-10-25
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Expires: 1964-06-24
Abstract
No abstract record available.
Inventors
- 👤 Jacobsen Oystein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:18
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/22; F16K5/222; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4365; Y10T137/4393; Y10T137/44; Y10T137/4407; Y10T137/4435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US586761A
Cited
US1608519A
Cited
US2069965A
Cited
US2078271A
Cited
US1961102A
Cited
US2026891A
Cited
GB484239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |