Patent DE49222C successfully refreshed from Google Patents.
Patent US3267845A successfully refreshed from Google Patents.
US3267845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix printer employing print bars
Assignee: RCA Corp
•
Filing: 1963-03-20
•
Granted: 1966-08-23
•
Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Elvin D Simshauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:06
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN AN APPARATUS FOR PRINTING ON A DOCUMENT, THE COMBINATION COMPRISING (A) A PLURALITY OF BARS OF RESILIENT MATERIAL, (B) A BACKING ELEMENT MOVABLE LONGITUDINALLY ALONG SAID BARS AND SPACED THEREFROM TO PROVIDE A PASSAGE FOR SAID DOCUMENT THEREBETWEEN, A LINEAL SURFACE OF SAID BACKING ELEMENT BEING DISPOSED LATERALLY ACROSS SAID BARS, (C) A MAGNETIC FIELD STRUCTURE HAVING AN AIR GAP ACROSS WHICH A CONSTANT MAGNETIC FIELD IS ESTABLISHED, (D) A PLURALITY OF COILS EACH SECURED TO END PORTIONS OF A DIFFERENT ONE OF SAID BARS AND IMMERSED IN SAID MAGNETIC FIELD, AND (E) MEANS FOR APPLYING ELECTRICAL PULSES SELECTIVELY TO SAID COILS TO ESTABLISH MAGNETIC FIELDS THEREAROUND
Claim 2
Dependent Claim
108 words
IN AN APPARATUS FOR PRINTING ON A DOCUMENT, THE COMBINATION COMPRISING (A) A PLURALITY OF BARS OF RESILIENT MATERIAL, (B) A BACKING ELEMENT MOVABLE LONGITUDINALLY ALONG SAID BARS AND SPACED THEREFROM TO PROVIDE A PASSAGE FOR SAID DOCUMENT THEREBETWEEN, A LINEAL SURFACE OF SAID BACKING ELEMENT BEING DISPOSED LATERALLY ACROSS SAID BARS, (C) A MAGNETIC FIELD STRUCTURE HAVING AN AIR GAP ACROSS WHICH A CONSTANT MAGNETIC FIELD IS ESTABLISHED, (D) A PLURALITY OF COILS EACH SECURED TO END PORTIONS OF A DIFFERENT ONE OF SAID BARS AND IMMERSED IN SAID MAGNETIC FIELD, AND (E) MEANS FOR APPLYING ELECTRICAL PULSES SELECTIVELY TO SAID COILS TO ESTABLISH MAGNETIC FIELDS THEREAROUND
References Cited (Backward Citations)
US2102771A
Cited
US1489500A
Cited
US1716699A
Cited
US2687088A
Cited
US2976801A
Cited
US2659652A
Cited
US2928896A
Cited
US2874634A
Cited
US3072045A
Cited
US3038158A
Cited
US3133497A
Cited
US3164084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |