US3020117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for controlling a plurality of writing heads
Assignee: US Philips Corp
•
Filing: 1957-05-31
•
Granted: 1962-02-06
•
Expires: 1977-05-31
Abstract
No abstract record available.
Inventors
- 👤 Heijn Herman Jacob
- 👤 Klinkhamer Jacob Fredrik
- 👤 Samwel Johannes Arnoldus
- 👤 Miranda Heine Andries Rodri De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:46
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/64; H03K17/62; H03K17/6221; H03K17/6285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2611025A
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US2734187A
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US2765895A
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US2769592A
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US2844811A
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US2932008A
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US2719773A
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US2772370A
Cited
FR1098208A
Cited
US2927304A
Cited
US2825889A
Cited
US2923589A
Cited
FR1137717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |