US2617293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Specimens for use in determining the brittleness of materials
Assignee: Individual
•
Filing: 1947-07-17
•
Granted: 1952-11-11
•
Expires: 1967-07-17
Abstract
No abstract record available.
Inventors
- 👤 Schnadt Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:29
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/02; G01N2203/00; G01N2203/02; G01N2203/026; G01N2203/0262; G01N2203/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1329192A
Cited
US1678017A
Cited
US1703928A
Cited
US1797882A
Cited
US2030418A
Cited
DE593912C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |