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US2582011A
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US
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Testing apparatus
Assignee: Individual
•
Filing: 1945-11-28
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Granted: 1952-01-08
•
Expires: 1965-11-28
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:14
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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US1176584A
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US1415968A
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US1441913A
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US1552585A
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US1696916A
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AU1070327A
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US1963537A
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US1804271A
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US2431101A
Cited
US2391008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |