US2912642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for indicating and measuring mechanical stresses within ferro-magnetic material
Assignee: ABB Norden Holding AB
•
Filing: 1954-04-05
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Granted: 1959-11-10
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Expires: 1974-04-05
Abstract
No abstract record available.
Inventors
- 👤 Dahle Orvar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:20
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/12; G01R33/18; G01L; G01L1/00; G01L1/12; G01L1/125; G01L1/127; Y; Y10; Y10S; Y10S73/00; Y10S73/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1971549A
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US2228294A
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US2255053A
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US2370845A
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US2437455A
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US2511178A
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US2511233A
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US2553833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |