US2744224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic curve follower with vibrating stylus
Assignee: AT&T Inc
•
Filing: 1952-03-12
•
Granted: 1956-05-01
•
Expires: 1972-03-12
Abstract
No abstract record available.
Inventors
- 👤 Hendrik W Bode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:33
CPC Classifications
G; G06; G06K; G06K11/00; G06K11/02; G06K11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2121211A
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US2262354A
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US2354391A
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US2611115A
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US2622871A
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US2489305A
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US2594716A
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US2588386A
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US2611887A
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US2598937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |