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Patent US2428559A successfully refreshed from Google Patents.
US2428559A
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Resinous composition for determining the strain concentration in rigid articles
Assignee: Magnaflux Corp
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Filing: 1944-07-28
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Granted: 1947-10-07
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Expires: 1964-07-28
Abstract
No abstract record available.
Inventors
- 👤 Ellis Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:23
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/16; G01B11/20; C; C08; C08L; C08L93/00; C08L93/04; Y; Y10; Y10S; Y10S252/00; Y10S252/961
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |