US3521293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character printing apparatus
Assignee: US Philips Corp
•
Filing: 1964-08-07
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Granted: 1970-07-21
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:55
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/485; B41J2/505; B41J2/5056; B41J2/385; B41J2/39; G; G06; G06K; G06K15/00; G06K15/02; G06K15/10; G11; G11B; G11B20/00; G11B20/10; G11B20/16; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2820956A
Cited
US3072046A
Cited
US3166752A
Cited
US3068481A
Cited
US3182333A
Cited
US3330208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |