US3353785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split sleeve plug valve having bonded polymeric material layer
Assignee: JENKINS BROS
•
Filing: 1965-01-21
•
Granted: 1967-11-21
•
Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Carl A Eggers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:28
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/045; F16K5/08; F16K5/14; F16K5/18; F16K5/184
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
IN A PLUG VALVE HAVING A VALVE BODY WITH MEANS FORMING INLET AND OUTLET OPENINGS AND SEALED MEANS FOR ROTATING A PLUG IN A BORE OF SAID VALVE BODY FROM AN OPEN TO A CLOSED POSITION, A VALVE PLUG ASSEMBLY COMPRISING A LONGITUDINALLY SPLIT CYLINDRICAL SLEEVE IN THE FORM OF A SLIGHTLY OPEN RING IN AXIAL CROSS-SECTION, SAID SLEEVE HAVING MEANS FORMING FLUID PASSAGE OPENINGS THERETHROUGH, WITH AT LEAST ONE OF SAID OPENING CENTERS BEING DISPOSED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |