US2481863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric apparatus for detecting surface defects in glassware
Assignee: OI Glass Inc
•
Filing: 1945-04-26
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Granted: 1949-09-13
•
Expires: 1965-04-26
Abstract
No abstract record available.
Inventors
- 👤 Elliott R Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:41
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/90; G01N21/9072; G01N21/9054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1934187A
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GB381335A
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US2008567A
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US2065713A
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DE649180C
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US2219572A
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US2313218A
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US2318856A
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US2335686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |