Patent US3308430A successfully refreshed from Google Patents.
US3308430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character recognition systems and apparatus
Assignee: National Research Development Corp UK
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Filing: 1964-11-27
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Granted: 1967-03-07
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Clowes Maxwell Bernard
- 👤 Parks John Ronald
- 👤 Clayden David Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:10
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
APPARATUS FOR RECOGNISING PRINTED OR HAND WRITTEN CHARACTERS OR GROUPS OF CHARACTERS WHICH COMPRISES MEANS FOR EFFECTING A SERIES OF SELF-MATCHING OPERATIONS ON EACH CHARACTER OR GROUP OF CHARACTERS USING IDENTICAL IMAGES OF SAID CHARACTER OR SAID GROUP OF CHARACTERS AS EXAMINING CHARACTER IMAGES WITH DIFFERENT FORMS OF RELATIVE DISPLACEMENT OF THE EXAMINING CHARACTER IMAGES WITH RESPECT TO THE SAID CHARACTER OR GROUP OF CHARACTERS IN EACH OPERATION TO DETERMINE THE PRESENCE OR ABSENCE OF DIFFERENT SPECIFIC CHARACTER FEATURES IN SAID CHARACTER OR IN EACH OF THE CHARACTERS OF SAID GROUP OF CHARACTERS, MEANS FOR
Claim 2
Dependent Claim
95 words
APPARATUS FOR RECOGNISING PRINTED OR HAND WRITTEN CHARACTERS OR GROUPS OF CHARACTERS WHICH COMPRISES MEANS FOR EFFECTING A SERIES OF SELF-MATCHING OPERATIONS ON EACH CHARACTER OR GROUP OF CHARACTERS USING IDENTICAL IMAGES OF SAID CHARACTER OR SAID GROUP OF CHARACTERS AS EXAMINING CHARACTER IMAGES WITH DIFFERENT FORMS OF RELATIVE DISPLACEMENT OF THE EXAMINING CHARACTER IMAGES WITH RESPECT TO THE SAID CHARACTER OR GROUP OF CHARACTERS IN EACH OPERATION TO DETERMINE THE PRESENCE OR ABSENCE OF DIFFERENT SPECIFIC CHARACTER FEATURES IN SAID CHARACTER OR IN EACH OF THE CHARACTERS OF SAID GROUP OF CHARACTERS, MEANS FOR
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |