US3588034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shutoff valve
Assignee: Individual
•
Filing: 1969-01-22
•
Granted: 1971-06-28
•
Expires: 1989-01-22
Abstract
Abstract A SHUTOFF VALVE IN WHICH A TUBULAR VALVE BODY IS PROVIDED WITH AN ELASTOMER LINING SEALED TO THE BODY AT ITS EXTREMITIES, AND A TRANSVERSELY MOVABLE GATE COMPRESSES THE LINER TO FORCE OPPOSED WALLS OF THE LINER INTO MUTUAL ENGAGEMENT AND FORM A SEAL.
Inventors
- 👤 Jonathan S Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:51
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; F16K7/061
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |