US3706099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphic recorder employing a reservoir lettering pen type stylus
Assignee: Varian Medical Systems Inc
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Filing: 1970-12-14
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Granted: 1972-12-12
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Expires: 1990-12-14
Abstract
Abstract A GRAPHIC RECORDER EMPLOYING A RESERVOIR LETTERING PEN TYPE STYLUS IS DISCLOSED. THE STYLUS INCLUDES A RESERVIOR FOR INK INTERCONNECTED TO THE STYLUS MEANS OF AN INK PASSAGEWAY. A MOVABLE AND WEIGHTED CLEANING PLUNGER IS DISPOSED IN THE INK PASSAGEWAY FOR UNCLOGGING THE PEN. A MOTORIZED PEN SHAKER, RESPONSIVE TO A TRAIN OF PULSES, SHAKES THE PEN PRIOR TO THE RECORDING PHASE OF THE OPERATING CYCLE OF THE RECORDER TO ASSURE THAT THE PEN WILL WRITE. A SEQUENCER OR PROGRAMMED GENERAL PURPOSE COMPUTER SEQUENCES THE SHAKING OF THE PEN.
Inventors
- 👤 Robert C Jones
- 👤 William Siebert Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:57
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/022; G; G06; G06K; G06K15/00; G06K15/22
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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |