US3082854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter input checking mechanism
Assignee: International Business Machines Corp
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Filing: 1961-05-12
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Granted: 1963-03-26
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Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Frank E Becker
- 👤 Dillion M Bingham
- 👤 Richard J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:43
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/04; B41J35/10; B41J35/12; B41J35/14; B41J23/00; B41J23/32; B41J23/34; B41J23/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN A TYPEWRITER HAVING A SINGLE TYPE HEAD WHICH IS MOVABLE TO PRESENT DIFFERENT CHARACTERS THEREON IN PRINTING POSITION RELATIVE TO A PLATEN, A PLURALITY OF ELEMENTS OPERATIVELY CONNECTED TO SAID HEAD AND MOVABLE INDIVIDUALLY BETWEEN OPERATIVE AND INOPERATIVE POSITIONS, MEANS FOR MOVING SAID ELEMENTS SO THAT PREDETERMINED COMBINATIONS, REPRESENTATIVE OF CHARACTERS TO BE PRINTED, ARE IN OPERATIVE POSITIONS, MEANS FOR ACTUATING SAID ELEMENTS IN OPERATIVE POSITIONS TO MOVE SAID TYPE HEAD TO A POSITION FOR PRINTING THE CHARACTER REPRESENTED, CONTACTS ASSOCIATED WITH EACH OF SAID ELEMENTS AND ADAPTED TO BE OPERATED BY THE LATTER WHEN ACTUATED, MEANS OPERATING ON MOVEMENT OF ANY ONE OF SAID ELEMENTS TO EFFECT AN OPERATION OF SAID ACTUATING MEANS, AN ELECTRICALLY ACTUATED MEANS FOR INDICATING AN ERROR WHEN ENERGIZED, AND CIRCUITS INCLUDING SAID CONTACTS FOR ENERGIZING SAID ELECTRICALLY ACTUATED MEANS WHEN THE COMBINATION OF ELEMENTS ACTUATED IS NOT ONE OF SAID PREDETERMINED COMBINATIONS.
Claim 2
Dependent Claim
149 words
IN A TYPEWRITER HAVING A SINGLE TYPE HEAD WHICH IS MOVABLE TO PRESENT DIFFERENT CHARACTERS THEREON IN PRINTING POSITION RELATIVE TO A PLATEN, A PLURALITY OF ELEMENTS OPERATIVELY CONNECTED TO SAID HEAD AND MOVABLE INDIVIDUALLY BETWEEN OPERATIVE AND INOPERATIVE POSITIONS, MEANS FOR MOVING SAID ELEMENTS SO THAT PREDETERMINED COMBINATIONS, REPRESENTATIVE OF CHARACTERS TO BE PRINTED, ARE IN OPERATIVE POSITIONS, MEANS FOR ACTUATING SAID ELEMENTS IN OPERATIVE POSITIONS TO MOVE SAID TYPE HEAD TO A POSITION FOR PRINTING THE CHARACTER REPRESENTED, CONTACTS ASSOCIATED WITH EACH OF SAID ELEMENTS AND ADAPTED TO BE OPERATED BY THE LATTER WHEN ACTUATED, MEANS OPERATING ON MOVEMENT OF ANY ONE OF SAID ELEMENTS TO EFFECT AN OPERATION OF SAID ACTUATING MEANS, AN ELECTRICALLY ACTUATED MEANS FOR INDICATING AN ERROR WHEN ENERGIZED, AND CIRCUITS INCLUDING SAID CONTACTS FOR ENERGIZING SAID ELECTRICALLY ACTUATED MEANS WHEN THE COMBINATION OF ELEMENTS ACTUATED IS NOT ONE OF SAID PREDETERMINED COMBINATIONS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |