US3519461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic dipole printing
Assignee: Unisys Corp
•
Filing: 1969-09-02
•
Granted: 1970-07-07
•
Expires: 1989-09-02
Abstract
No abstract record available.
Inventors
- 👤 Philip A Stowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:32
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/22; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3012839A
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US3010842A
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US2919171A
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US3068479A
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US3280741A
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US3108895A
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US3068481A
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US3212888A
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US3132969A
Cited
US3262806A
Cited
US3234904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |