Patent US3403387A successfully refreshed from Google Patents.
US3403387A
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Electron beam information reproducing apparatus
Assignee: Ampex Corp
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Filing: 1962-07-26
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Granted: 1968-09-24
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Expires: 1982-07-26
Abstract
No abstract record available.
Inventors
- 👤 Emil V Boblett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:22
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/252; H01J37/256; G; G11; G11B; G11B7/00; G11B7/004; G11B7/005; G11B7/24; G11C; G11C13/00; G11C13/04; G11C13/048; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J31/00; H01J31/08; H01J31/58; H01J31/60; H01J37/02; H01J37/22; H04; H04N; H04N5/00; H04N5/76; H04N5/84
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |