US3527406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card reader apparatus
Assignee: Norfin International Inc
•
Filing: 1968-08-30
•
Granted: 1970-09-08
•
Expires: 1988-08-30
Abstract
No abstract record available.
Inventors
- 👤 Donald L Snellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:56
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/01; G06K13/00; G06K13/02; G06K13/06; G06K13/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1153339A
Cited
US2993692A
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US3112378A
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US3066863A
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US3132241A
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US3059922A
Cited
US3139520A
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US3194946A
Cited
US3201570A
Cited
US3414254A
Cited
US3414256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |