US3416191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for compacting permanent magnet powders into pressings
Assignee: Deutsche Edelstahlwerke AG
•
Filing: 1966-03-14
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Granted: 1968-12-17
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Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Richter Henning
- 👤 Buttner Karl Heinz
- 👤 Bintzek Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:30
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0253; H01F41/0273; B; B30; B30B; B30B11/00; B30B11/008; Y; Y10; Y10S; Y10S425/00; Y10S425/033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
APPARATUS FOR COMPACTING PERMANENT MAGNET POWDERS INTO PRESSING MAGNETISED DIAMETRICALLY ACROSS THE PRESSING DIRECTION IN A DIE INTO WHICH THE POWDER IS INTRODUCED BY MAGNETIC SUCTION, COMPRISING THE DIE AND A MAGNET COIL WHICH ARE RELATIVELY MOVABLE IN THE AXIAL DIRECTION OF THE DIE FOR DRAWING THE POWDER INTO THE DIE AND A PAIR OF MAGNET COILS WITH POLESHOES MOVEABLE CROSS-
Claim 2
Dependent Claim
61 words
APPARATUS FOR COMPACTING PERMANENT MAGNET POWDERS INTO PRESSING MAGNETISED DIAMETRICALLY ACROSS THE PRESSING DIRECTION IN A DIE INTO WHICH THE POWDER IS INTRODUCED BY MAGNETIC SUCTION, COMPRISING THE DIE AND A MAGNET COIL WHICH ARE RELATIVELY MOVABLE IN THE AXIAL DIRECTION OF THE DIE FOR DRAWING THE POWDER INTO THE DIE AND A PAIR OF MAGNET COILS WITH POLESHOES MOVEABLE CROSS-
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |