Patent US3376035A successfully refreshed from Google Patents.
US3376035A
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US
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Electromagnetic transducer manufacture
Assignee: International Business Machines Corp
•
Filing: 1964-12-10
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Granted: 1968-04-02
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Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 Bate Geoffrey
- 👤 John R Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:44
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/1272; G06; G06K; G06K7/00; G06K7/08; G06K7/089; G11B5/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49036; Y10T29/49043; Y10T29/49048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3222754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |