US3487371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data entry system
Assignee: SCANDATA CORP
•
Filing: 1967-03-03
•
Granted: 1969-12-30
•
Expires: 1987-03-03
Abstract
No abstract record available.
Inventors
- 👤 Alan I Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:41
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/048; G06F3/0487; G06F3/0488; G06F3/04883; G06V; G06V10/00; G06V10/10; G06V10/17; G06V10/98; G09; G09B; G09B7/00; G09B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3108254A
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US3127588A
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US3111646A
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US3133266A
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US3241120A
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US3248705A
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US3303465A
Cited
US3323119A
Cited
US3376551A
Cited
US3399401A
Cited
US3371321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |