US3100560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink-ribbon control mechanism
Assignee: Unisys Corp
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Filing: 1960-08-18
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Granted: 1963-08-13
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Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Nicholas Kondur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:33
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/04; B41J35/10; B41J35/12; B41J35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A CYCLICALLY OPERABLE TYPEWRITER HAVING A BICHROME INKING RIBBON AND A FRAME SUPPORTING SAID RIBBON AND BEING SHIFTABLE TO TWO COLOR POSITIONS, OPERATING MEANS COUPLED TO SAID FRAME, DRIVE MEANS ACTUATED DURING EACH CYCLE OF OPERATION OF SAID TYPEWRITER OPERABLE TO ACTUATE SAID OPERATING MEANS, MANIPULATIVE MEANS MOVABLE BETWEEN TWO POSITIONS FOR SELECTING A COLOR POSITION, AND MEANS MOUNTED ON SAID DRIVE MEANS FOR COUPLING SAID DRIVE MEANS TO SAID OPERATING MEANS TO TRANSMIT ADDITIONAL MOVEMENT THERETO, SAID MANIPULATIVE MEANS BEING OPERABLE TO DISABLE SAID COUPLING MEANS IN ONE COLOR SELECTIVE POSITION AND TO ENABLE SAID COUPLING MEANS IN ITS OTHER COLOR SELECTIVE POSITION.
Claim 2
Dependent Claim
105 words
IN A CYCLICALLY OPERABLE TYPEWRITER HAVING A BICHROME INKING RIBBON AND A FRAME SUPPORTING SAID RIBBON AND BEING SHIFTABLE TO TWO COLOR POSITIONS, OPERATING MEANS COUPLED TO SAID FRAME, DRIVE MEANS ACTUATED DURING EACH CYCLE OF OPERATION OF SAID TYPEWRITER OPERABLE TO ACTUATE SAID OPERATING MEANS, MANIPULATIVE MEANS MOVABLE BETWEEN TWO POSITIONS FOR SELECTING A COLOR POSITION, AND MEANS MOUNTED ON SAID DRIVE MEANS FOR COUPLING SAID DRIVE MEANS TO SAID OPERATING MEANS TO TRANSMIT ADDITIONAL MOVEMENT THERETO, SAID MANIPULATIVE MEANS BEING OPERABLE TO DISABLE SAID COUPLING MEANS IN ONE COLOR SELECTIVE POSITION AND TO ENABLE SAID COUPLING MEANS IN ITS OTHER COLOR SELECTIVE POSITION.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |