US2617048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric inspection device
Assignee: International Business Machines Corp
•
Filing: 1948-01-09
•
Granted: 1952-11-04
•
Expires: 1968-01-09
Abstract
No abstract record available.
Inventors
- 👤 John L Wagner
- 👤 Richard H Holmwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:15
CPC Classifications
B; B65; B65H; B65H7/00; B65H7/02; B65H7/14; G; G06; G06K; G06K19/00; G06K19/02; G06K19/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1828894A
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US2138645A
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US2258109A
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US2251613A
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US2222429A
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US2433685A
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US2429331A
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US2438588A
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US2513349A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |