US3051380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforated record sensing device
Assignee: Clary Corp
•
Filing: 1958-03-03
•
Granted: 1962-08-28
•
Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Oldenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:31
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US677214A
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US1791952A
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US2122206A
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US2258290A
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US2307635A
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US2484114A
Cited
US2890828A
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US2842312A
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US2798668A
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US2980319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |