US3409900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gap scatter correction apparatus
Assignee: Ampex Corp
•
Filing: 1965-10-07
•
Granted: 1968-11-05
•
Expires: 1985-10-07
Abstract
No abstract record available.
Inventors
- 👤 Michael J Markakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:02
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; G11B5/09; G11B20/00; G11B20/10; G11B20/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3264622A
Cited
US3263223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |