Patent US2882523A successfully refreshed from Google Patents.
US2882523A
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US
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Missing element detection in a stem making machine
Assignee: Westinghouse Electric Corp
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Filing: 1953-06-01
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Granted: 1959-04-14
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Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 John J Barrett
- 👤 Ralph R Parducci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:59
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1547393A
Cited
US1682464A
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US2329599A
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US2549296A
Cited
GB674459A
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US2700154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |