Patent US3512172A successfully refreshed from Google Patents.
US3512172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink drop writer nozzle
Assignee: AB Dick Co
•
Filing: 1968-08-22
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Granted: 1970-05-12
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Expires: 1988-08-22
Abstract
No abstract record available.
Inventors
- 👤 Paul Colecchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:08
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/032; H04N1/034; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/015; B41J2/02; B41J2/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3334350A
Cited
US3281860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |