US2927216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photometric character recognition device
Assignee: Unisys Corp
•
Filing: 1957-12-19
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Granted: 1960-03-01
•
Expires: 1977-12-19
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm J Lohninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:04
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/10; G06V10/20; G06V10/24; G06V10/40; G06V10/42; G06V10/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1838389A
Cited
US2211320A
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US2294679A
Cited
US2362004A
Cited
US2552156A
Cited
US2479309A
Cited
US2548755A
Cited
US2525445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |