Patent US3445928A successfully refreshed from Google Patents.
US3445928A
Expired / Lapsed
US
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Magnetometer method of manufacture
Assignee: Bunker Ramo Corp
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Filing: 1966-03-25
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Granted: 1969-05-27
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Expires: 1986-03-25
Abstract
No abstract record available.
Inventors
- 👤 John C Beynon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:43
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/04; G01R33/05; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/49073; Y10T29/49117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1775880A
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US2743415A
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US3127559A
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FR1007043A
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US2606229A
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US2811690A
Cited
US3068437A
Cited
US2981885A
Cited
US3154769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |