Patent US309324A successfully refreshed from Google Patents.
Patent US3057552A successfully refreshed from Google Patents.
US3057552A
Expired / Lapsed
US
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Optical apparatus for reading indicia appearing on a record medium
Assignee: Unisys Corp
•
Filing: 1958-08-14
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Granted: 1962-10-09
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Expires: 1978-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter Hanstein
- 👤 Richard H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:41
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB686642A
Cited
US2254932A
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US2294734A
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US2337553A
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US2382251A
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US2710934A
Cited
US2724014A
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US2742631A
Cited
US2848535A
Cited
US2783454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |