US3568321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low cost plotter
Assignee: Electronic Associates Inc
•
Filing: 1968-09-06
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Granted: 1971-03-09
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Expires: 1988-09-06
Abstract
Abstract A LOW COST PLOTTER HAVING A PLOTTING SURFACE WHICH SERVES AS THE MAIN STRUCTURAL SUPPORT FOR THE PLOTTER AN ARM MOUNTED FOR TRAFEL ALONG OPPOSITE SIDES OF THE PLOTTING SURFACE, A PEN HOLDING MECHANISM MOUNTED FOR MOVEMENT ALONG THE ARM, WITH THE ARM BEING DRIVEN AT BOTH SIDES OF THE SURFACE BY A DUAL BEAD BELT DRIVE TO PREVENT ARM SKEW AND TO ENSURE ACCURATE SQUARING.
Inventors
- 👤 Charles H Maps
- 👤 Edward J Paschetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:00
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/022
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |