US3445942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple printout test grading machine
Assignee: AUTOMATA CORP
•
Filing: 1968-12-16
•
Granted: 1969-05-27
•
Expires: 1988-12-16
Abstract
No abstract record available.
Inventors
- 👤 Leo L Azure Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:44
CPC Classifications
G; G06; G06K; G06K17/00; G06K17/0032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2817480A
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US3050248A
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US2944734A
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US3408482A
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US3294956A
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US3308273A
Cited
US3176415A
Cited
US3267258A
Cited
US3284929A
Cited
US3412484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |