US2816053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powdered metal magnet with low residual characteristics
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1954-04-08
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Granted: 1957-12-10
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Expires: 1974-04-08
Abstract
No abstract record available.
Inventors
- 👤 Berge Godshalk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:09
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; H01F1/06; H01F1/08; H01F1/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A MAGNET CORE OF LOW RESIDUAL CHARACTERISTICS CONSISTING OF A SINTERED MIXTURE OF NINETY-FOUR PERCENT (94%) POWDERED IRON, FOUR PERCENT (4%) POWDERED TIN, AND TWO PERCENT (2%) POWDERED MOLYBDENUM.
Claim 2
Dependent Claim
29 words
A MAGNET CORE OF LOW RESIDUAL CHARACTERISTICS CONSISTING OF A SINTERED MIXTURE OF NINETY-FOUR PERCENT (94%) POWDERED IRON, FOUR PERCENT (4%) POWDERED TIN, AND TWO PERCENT (2%) POWDERED MOLYBDENUM.
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |