US3427872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and system for investigating the stress condition of magnetic materials
Assignee: Southwest Research Institute
•
Filing: 1966-10-05
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Granted: 1969-02-18
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Expires: 1986-10-05
Abstract
No abstract record available.
Inventors
- 👤 Richard W Leep
- 👤 Richard L Pasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:41
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/16; G01B7/24; G01L; G01L1/00; G01L1/12; G01L1/125; G01L1/127; G01N; G01N27/00; G01N27/72; G01N27/725; Y; Y10; Y10S; Y10S73/00; Y10S73/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3178934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |