Patent US3133266A successfully refreshed from Google Patents.
US3133266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic recognition of handwriting
Assignee: AT&T Inc
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Filing: 1960-06-14
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Granted: 1964-05-12
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Expires: 1980-06-14
Abstract
No abstract record available.
Inventors
- 👤 Lawrence S Frishkopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:06
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/10; G06V10/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN APPARATUS FOR READING AND CLASSIFYING ENTIRE WORDS HANDWRITTEN IN CURSIVE SCRIPT, MEANS FOR GENERATING COORDINATE SIGNALS PROPORTIONAL AT EACH INSTANT TO THE COORDINATES OF POSITION OF A WRITING INSTRUMENT AS IT IS MOVED TO WRITE A WORD, MEANS RESPONSIVE TO SAID GENERATED COORDINATE SIGNALS FOR DETECTING SIGNAL EXTREMALS IN EACH OF TWO COORDINATE DIRECTIONS, MEANS FOR ENCODING THE COORDINATES OF POSITION AND INSTANTS OF OCCURENCE OF ALL OF SAID DETECTED EXTERMALS, MEANS FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE SIGNS OF THE DIFFERENCES BETWEEN SUCCESSIVE EXTREMALS, MEANS FOR ENCODING SAID REPRESENTATIVE SIGNALS, MEANS FOR STORING SAID ENCODED EXTREMAL SIGNALS AND SAID ENCODED REPRESENTATIVE SIGNALS TO PRODUCE AN ORDERED LISTING OF WORD CHARACTERISTICS, MEANS FOR PREREGISTERING AN ORDERED LISTING OF TYPICAL ENCODED EXTREMALS AND ENCODED REPRESENTATIVE SIGNALS OF EACH OF A PLURALITY OF WORDS, AND MEANS OPERABLY RESPONSIVE TO SAID PREREGISTERED LISTINGS FOR CLASSIFYING SAID WRITTEN WORD.
Claim 2
Dependent Claim
147 words
IN APPARATUS FOR READING AND CLASSIFYING ENTIRE WORDS HANDWRITTEN IN CURSIVE SCRIPT, MEANS FOR GENERATING COORDINATE SIGNALS PROPORTIONAL AT EACH INSTANT TO THE COORDINATES OF POSITION OF A WRITING INSTRUMENT AS IT IS MOVED TO WRITE A WORD, MEANS RESPONSIVE TO SAID GENERATED COORDINATE SIGNALS FOR DETECTING SIGNAL EXTREMALS IN EACH OF TWO COORDINATE DIRECTIONS, MEANS FOR ENCODING THE COORDINATES OF POSITION AND INSTANTS OF OCCURENCE OF ALL OF SAID DETECTED EXTERMALS, MEANS FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE SIGNS OF THE DIFFERENCES BETWEEN SUCCESSIVE EXTREMALS, MEANS FOR ENCODING SAID REPRESENTATIVE SIGNALS, MEANS FOR STORING SAID ENCODED EXTREMAL SIGNALS AND SAID ENCODED REPRESENTATIVE SIGNALS TO PRODUCE AN ORDERED LISTING OF WORD CHARACTERISTICS, MEANS FOR PREREGISTERING AN ORDERED LISTING OF TYPICAL ENCODED EXTREMALS AND ENCODED REPRESENTATIVE SIGNALS OF EACH OF A PLURALITY OF WORDS, AND MEANS OPERABLY RESPONSIVE TO SAID PREREGISTERED LISTINGS FOR CLASSIFYING SAID WRITTEN WORD.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |