US2738499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for identifying line traces
Assignee: International Business Machines Corp
•
Filing: 1953-06-22
•
Granted: 1956-03-13
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Sprick Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:35
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/1092; G06K11/00; G06K11/02; G06K11/04; G06V; G06V10/00; G06V10/10; G06V10/20; G06V30/00; G06V30/10; G06V30/14; G06V30/146; G06V30/18; G06V30/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1851072A
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US1579263A
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US2040813A
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US2398988A
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US2415059A
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US2472774A
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US2604534A
Cited
US2538065A
Cited
US2645712A
Cited
US2533242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |