US2670749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic valve
Assignee: Hanovia Chemical and Manufacturing Co
•
Filing: 1950-07-20
•
Granted: 1954-03-02
•
Expires: 1970-07-20
Abstract
No abstract record available.
Inventors
- 👤 Germer Edmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:38
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/08; F16K13/10; F16K31/00; F16K31/02; F16K31/06; H; H01; H01F; H01F1/00; H01F1/44; H01F1/447; Y; Y10; Y10S; Y10S137/00; Y10S137/909; Y10T; Y10T137/00; Y10T137/0318; Y10T137/4456; Y10T137/4643; Y10T137/4666
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2505049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |