US2849312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of aligning magnetic particles in a non-magnetic matrix
Assignee: VACUUM FILTER MANUFACTURING COMPANY AN IL CORP
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Filing: 1954-02-01
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Granted: 1958-08-26
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Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 Milton J Peterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:48
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0253; H01F41/0273; Y; Y10; Y10S; Y10S264/00; Y10S264/58; Y10S425/00; Y10S425/033; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/928; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49076; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12465
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
METHOD OF ALIGNING MAGNETIC MATERIAL IN A NON-MAG NETIC MATRIX COMPRISING MIXING TOGETHER FISNELY DIVIDED MAGNETIC MATERIAL WITH NON-MAGNETIC MATERIAL IN A LIQUID STATE, APPLYING A MAGNETIC FIELD TOS THE MIXTURE TO ORIENT SAID MAGNETIC MATERIALF, AND SOLIDIFYING SAID NON-MAGNETIC MATERIAL WHILE RETAINING THE ORIENTATION OF SAID MAGNETIC MATERIAL.
Claim 2
Dependent Claim
49 words
METHOD OF ALIGNING MAGNETIC MATERIAL IN A NON-MAG NETIC MATRIX COMPRISING MIXING TOGETHER FISNELY DIVIDED MAGNETIC MATERIAL WITH NON-MAGNETIC MATERIAL IN A LIQUID STATE, APPLYING A MAGNETIC FIELD TOS THE MIXTURE TO ORIENT SAID MAGNETIC MATERIALF, AND SOLIDIFYING SAID NON-MAGNETIC MATERIAL WHILE RETAINING THE ORIENTATION OF SAID MAGNETIC MATERIAL.
References Cited (Backward Citations)
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Cited
US2431095A
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US2597237A
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US2593943A
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US2691814A
Cited
US2783208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |