US2725786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical card reading apparatus
Assignee: Applied Biosystems Inc
•
Filing: 1954-02-11
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Granted: 1955-12-06
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Expires: 1974-02-11
Abstract
No abstract record available.
Inventors
- 👤 Edward L Mccarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:18
CPC Classifications
G; G06; G06K; G06K5/00; G09; G09G; G09G3/00; G09G3/04; G09G3/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1751584A
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US1935070A
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US1880414A
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US1977120A
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US2295000A
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US2323372A
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US2357593A
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US2354591A
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US2471800A
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US2488955A
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US2638031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |