US3229512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring mechanical stresses
Assignee: US Philips Corp
•
Filing: 1963-08-06
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Granted: 1966-01-18
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Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 Goudswaard Boudewijn
- 👤 Huijer Pieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:16
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0033; G01L9/0035; G01L1/00; G01L1/12; G01L1/20; Y; Y10; Y10S; Y10S73/00; Y10S73/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A STRAIN GAUGE COMPRISING AN INSULATING SUPPORT MEMBER ADAPTED TO HAVE A STRESS PRODUCING FORCE APPLIED THERETO, A THIN FILM OF MAGNETIC MATERIAL SUPPORTED THEREON, SAID FILM OF MAGNETIC MATERIAL EXHIBITING A PREFERRED DIRECTION OF MAGNETIZATION WHICH DEFINES AN ANGLE OF LESS THAN NINETY DEGREES WITH RESPECT TO THE DIRECTION OF STRESS PRODUCED IN SAID MATERIAL, SAID MAGNETIC FILM UNDERGOING A DEFORMATION IN RESPONSE TO SAID STRESS PRODUCING FORCE WHICH PRODUCES A PROPORTIONAL CHANGE IN ELECTRICAL
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |