US3404026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming magnetic ferrite films
Assignee: United States Department of the Army
•
Filing: 1965-04-06
•
Granted: 1968-10-01
•
Expires: 1985-04-06
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Skudera
- 👤 Jr William L Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:06
CPC Classifications
H; H01; H01F; H01F10/00; H01F10/08; H01F10/10; H01F10/18; H01F10/20; H01F10/205; Y; Y10; Y10S; Y10S264/00; Y10S264/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3049404A
Cited
US3113927A
Cited
US3100158A
Cited
US3155623A
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US3197334A
Cited
US3271191A
Cited
US3341308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |