US2894247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character recognition device
Assignee: Unisys Corp
•
Filing: 1953-12-04
•
Granted: 1959-07-07
•
Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 Matthew J Relis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:13
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/40; G06V10/42; G06V10/421; G06V10/20; 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)
US2285296A
Cited
US2209106A
Cited
US2265445A
Cited
US2351231A
Cited
US2375044A
Cited
US2616983A
Cited
US2533242A
Cited
US2635195A
Cited
US2682043A
Cited
US2838602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |