US2589188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet operated valve
Assignee: Crane Co
•
Filing: 1947-07-16
•
Granted: 1952-03-11
•
Expires: 1967-07-16
Abstract
No abstract record available.
Inventors
- 👤 Craene Edmond P De
- 👤 Edward G Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:38
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; F16K31/086; F16K31/088
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US973075A
Cited
US1112992A
Cited
GB208703A
Cited
US1986252A
Cited
US2210559A
Cited
US2346904A
Cited
US2405127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |