US3485970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure operated paper tape reader
Assignee: Unisys Corp
•
Filing: 1968-12-27
•
Granted: 1969-12-23
•
Expires: 1988-12-27
Abstract
No abstract record available.
Inventors
- 👤 Arnold Schonfeld
- 👤 Marvin Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:32
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34; G; G06; G06K; G06K7/00; G06K7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US412657A
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US1124814A
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US1078133A
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US1745394A
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US2149068A
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US2510552A
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US2860200A
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US3300703A
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US3335242A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |