Patent US3445942A successfully refreshed from Google Patents.
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 20:23
CPC Classifications
G; G06; G06K; G06K17/00; G06K17/0032
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2817480A
Cited
US3050248A
Cited
US2944734A
Cited
US3408482A
Cited
US3294956A
Cited
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 |