Patent US3020033A successfully refreshed from Google Patents.
US3020033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inspection and control system
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1959-07-15
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Granted: 1962-02-06
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Expires: 1979-07-15
Abstract
No abstract record available.
Inventors
- 👤 Richard A Mccreanor
- 👤 Russel L Uphoff
- 👤 John F Laycak
- 👤 Rudolph S Libenschek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:12
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2803755A
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US2910908A
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US2930228A
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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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |