US3439532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensile testing machine for metallic test pieces
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1966-11-29
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Granted: 1969-04-22
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Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Marc Grumbach
- 👤 Andre Guimard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:12
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/16; G01N; G01N3/00; G01N3/02; G01N3/06
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) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |