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US2806371A
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Testing device for hollow articles
Assignee: Wagner Electric Corp
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Filing: 1952-11-26
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Granted: 1957-09-17
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Expires: 1972-11-26
Abstract
No abstract record available.
Inventors
- 👤 Stecker Walter Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:59
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/32; G01M3/3281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1649287A
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US1861542A
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US2387743A
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US2579495A
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US2573646A
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US2641126A
Cited
US2618152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |