US3400180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for compacting magnetic powder
Assignee: Deutsche Edelstahlwerke AG
•
Filing: 1965-02-15
•
Granted: 1968-09-03
•
Expires: 1985-02-15
Abstract
No abstract record available.
Inventors
- 👤 Buttner Karl
- 👤 Richter Henning
- 👤 Voller Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:13
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/165; G01R19/16504; G01R19/16509; B; B22; B22F; B22F3/00; B22F3/02; G05; G05F; G05F7/00; H; H01; H01F; H01F41/00; H01F41/02; H01F41/0253; H01F41/0273; H01H; H01H47/00; Y; Y10; Y10S; Y10S425/00; Y10S425/026; Y10S425/033; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49076
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |