US3433630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic permeability material
Assignee: Panasonic Holdings Corp
•
Filing: 1966-10-13
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Granted: 1969-03-18
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Expires: 1986-10-13
Abstract
No abstract record available.
Inventors
- 👤 Hozumi Hirota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:17
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A FERROMAGNETIC MATERIAL WITH A CR23C6 TYPE OF CRYSTAL STRUCTURE COMPRISING ESSENTIALLY
Claim 2
Dependent Claim
12 words
A FERROMAGNETIC MATERIAL WITH A CR23C6 TYPE OF CRYSTAL STRUCTURE COMPRISING ESSENTIALLY
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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |