US2673310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet
Assignee: Deutsche Edelstahlwerke AG
•
Filing: 1950-08-21
•
Granted: 1954-03-23
•
Expires: 1970-08-21
Abstract
No abstract record available.
Inventors
- 👤 Dannohl Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:38
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; C; C22; C22C; C22C38/00; C22C38/16; H04; H04R; H04R9/00; H04R9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
PERMANENT MAGNET MADE FROM AN ALLOY CONSISTING OF:
Claim 2
Dependent Claim
8 words
PERMANENT MAGNET MADE FROM AN ALLOY CONSISTING OF:
References Cited (Backward Citations)
US2245477A
Cited
US2155651A
Cited
US2167240A
Cited
US2372203A
Cited
US2499860A
Cited
US2499862A
Cited
US2499861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |