Patent US3326516A successfully refreshed from Google Patents.
US3326516A
Expired / Lapsed
US
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High pressure plug valve
Assignee: Texsteam Inc
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Filing: 1964-03-17
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Granted: 1967-06-20
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Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 Norman H Sachnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:48
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0457; F16K5/0464; F16K5/0485; Y; Y10; Y10S; Y10S277/00; Y10S277/91
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |