US3507983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproduction system and method for magnetically stored color video signals
Assignee: INT VIDEO CORP
•
Filing: 1966-11-04
•
Granted: 1970-04-21
•
Expires: 1986-11-04
Abstract
No abstract record available.
Inventors
- 👤 Eugene R P Leman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:46
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/87; H04N9/8707
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2666136A
Cited
US2751430A
Cited
US2743369A
Cited
US2793347A
Cited
US2802045A
Cited
US2916547A
Cited
US3120576A
Cited
US3030438A
Cited
US3100816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |