US3340983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing device using coded inks
Assignee: Wyeth Holdings LLC
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Filing: 1966-02-09
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Granted: 1967-09-12
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Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 Halverson Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:59
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/08; B; B41; B41B; B41B25/00; B41J; B41J31/00; B41J31/05; C; C09; C09D; C09D11/00; C09D11/50; C09D5/00; C09D5/22; C09K; C09K11/00; C09K11/08; C09K11/74; C09K11/77; C09K11/7766; C09K11/7767; C09K11/7769; C09K11/7776; G06K1/00; G06K1/12; G06K1/121; G06K1/123; G06K19/02; G06K7/00; G06K7/10; G06K7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A TYPEWRITER HAVING KEYBOARD, CARRIAGE, CARRIAGE ADVANCING MEANS, AND A TYPING POINT, THE IMPROVEMENT WHICH COMPRISES IN COMBINATION, (A) A PLURALITY OF PRINTING HAMMERS ADJACENT TO THE PRINTING POINT AND SPACED HORIZONTALLY THEREFROM IN THE DIRECTION OF CARRIAGE TRAVEL, SAID HAMMERS BEING PROVIDED WITH MEANS FOR INKING EACH HAMMER WITH A SEPARATE INK, THE INK FOR EACH HAMMER BEING DIFFERENT IN COMPOSITION FROM THE INK FOR ANY OTHER HAMMER, MEANS FOR PREVENTING MIXING OF ANY ONE OF THE DIFFERENT INKS WITH ANY OF THE OTHERS, AND (B) MEANS CONTROLLED BY KEY ACTION FOR CAUSING PRESELECTED CODED HAMMERS TO STRIKE PAPER ON THE CARRIAGE OVER A TYPED SYMBOL, SAID ACTUATION OCCURRING SUBSEQUENT TO TYPING OF A SYMBOL FOR A PARTICULAR KEY.
Claim 2
Dependent Claim
121 words
IN A TYPEWRITER HAVING KEYBOARD, CARRIAGE, CARRIAGE ADVANCING MEANS, AND A TYPING POINT, THE IMPROVEMENT WHICH COMPRISES IN COMBINATION, (A) A PLURALITY OF PRINTING HAMMERS ADJACENT TO THE PRINTING POINT AND SPACED HORIZONTALLY THEREFROM IN THE DIRECTION OF CARRIAGE TRAVEL, SAID HAMMERS BEING PROVIDED WITH MEANS FOR INKING EACH HAMMER WITH A SEPARATE INK, THE INK FOR EACH HAMMER BEING DIFFERENT IN COMPOSITION FROM THE INK FOR ANY OTHER HAMMER, MEANS FOR PREVENTING MIXING OF ANY ONE OF THE DIFFERENT INKS WITH ANY OF THE OTHERS, AND (B) MEANS CONTROLLED BY KEY ACTION FOR CAUSING PRESELECTED CODED HAMMERS TO STRIKE PAPER ON THE CARRIAGE OVER A TYPED SYMBOL, SAID ACTUATION OCCURRING SUBSEQUENT TO TYPING OF A SYMBOL FOR A PARTICULAR KEY.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |