US2986374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary plug valve
Assignee: Individual
•
Filing: 1959-05-05
•
Granted: 1961-05-30
•
Expires: 1979-05-05
Abstract
No abstract record available.
Inventors
- 👤 Jozef M Rakus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:12
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0457; F16K5/0464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2210335A
Cited
US2485915A
Cited
US2613057A
Cited
US2694548A
Cited
US2890017A
Cited
US2911009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |