Patent US3619220A successfully refreshed from Google Patents.
Patent US3605611A successfully refreshed from Google Patents.
US3605611A
Expired / Lapsed
US
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Print hammer and actuator construction for high speed printers
Assignee: Data Printer Corp
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Filing: 1969-05-08
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Granted: 1971-09-20
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Expires: 1989-05-08
Abstract
Abstract A PRINT HAMMER ACTUATOR ASSEMBLY FOR HIGH SPEED PRINTERS. TWO ELECTROMAGNETICALLY ENERGIZED ACTUATOR CONSTRUCTIONS ARE PROVIDED, WHICH ARE MECHANICALLY EQUIVALENT BUT OF COMPLEMENTARY GEOMETRY SO THAT THEY CAN BE LOCATED TOGETHER IN A MANNER FACILITATING INDIVIDUAL REMOVAL OF THE ACTUATORS. THE ACTUATORS ARE LOCATED IN DIREACTIONS PARALLEL TO THE LINE OF PRINT BY ALIGNMENT COMBS FASTENED TO A BASE PLATE, AND LOCATED IN DIRECTIONS NORMAL TO THE LINE OF PRINT BY STOP BARS FASTENED TO THE BASE PLATE.
Inventors
- 👤 Joseph Konkel
- 👤 Frank H Schaller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:33
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/02; B41J9/10
Claims Analysis
Total Claims: 0
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |