Patent US2453576A successfully refreshed from Google Patents.
US2453576A
Expired / Lapsed
US
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Spot weld tester
Assignee: ELECTROLOY Co Inc
•
Filing: 1945-03-02
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Granted: 1948-11-09
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Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 Fraser B Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:27
CPC Classifications
G; G01; G01N; G01N3/00; G01N2203/00; G01N2203/02; G01N2203/026; G01N2203/0296
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1512491A
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US1770045A
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US2004660A
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US2065359A
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US2090160A
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US2283707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |