Patent US3416154A successfully refreshed from Google Patents.
US3416154A
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US
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Data disk structure and rotatable mounting therefor
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1966-01-14
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Granted: 1968-12-10
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Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 Heller Stanley
- 👤 William F Anderson
- 👤 Robert B Berlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:07
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/0284; G11B23/00; G11B23/0014; G11B23/0021; G11B23/0028; G11B23/0035; G11B7/00; G11B7/08; G11B7/24; G11B7/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49762
Claims Analysis
Total Claims: 0
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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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |