US3534332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic systems and apparatus for recognising printed characters
Assignee: National Research Development Corp UK
•
Filing: 1966-11-14
•
Granted: 1970-10-13
•
Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 John R Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:51
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/20; G06V10/30; G06V10/40; G06V10/42; G06V10/70; G06V10/74; G06V10/75
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |