US3274528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain measuring device
Assignee: Lockheed Martin Corp
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Filing: 1964-03-23
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Granted: 1966-09-20
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Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Leslie H Bermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:10
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2287; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN ELECTRICAL STRAIN MEASURING DEVICE CAPABLE OF BEING PRESSED ONTO A RECEIVING SURFACE, COMPRISING A SHEET OF POLYMERIZABLE ADHESIVE POLYMERIZED TO A B-STAGE CURE, AT LEAST ONE SURFACE OF SAID SHEET HAVING THE CHARACTERISTIC OF BEING ADHESIVELY BONDED TO SAID RECEIVING SURFACE UPON SUBSTANTIAL COMPLETION OF POLYMERIZATION OF SAID ADHESIVE; AN IMPERMEABLE BACKING STRIP, IN CONTACT WITH, AND EXTENDING OVER SAID ONE SURFACE OF SAID SHEET; A PLURALITY DISPOSED STRAIN-RESPONSIVE SENSING CONDUCTOR, COPLANARLY ENCAPSULATED WITHIN SAID SHEET, THE RESISTANCE OF SAID SENSING CONDUCTOR BEING RESPONSIVE TO STRAIN TRANSMITTED FROM SAID RECEIVING SURFACE THROUGH SAID POLYMERIZED ADHESIVE; AND A PAIR OF LEAD CONDUCTORS EACH HAVING A FIRST END CONNECTED TO A CORRESPONDING TERMINUS OF SAID SENSING CONDUCTOR AND A SECOND END EXTENDING THROUGH, AND BEYOND, A BOUNDARY OF SAID SHEET.
Claim 2
Dependent Claim
129 words
AN ELECTRICAL STRAIN MEASURING DEVICE CAPABLE OF BEING PRESSED ONTO A RECEIVING SURFACE, COMPRISING A SHEET OF POLYMERIZABLE ADHESIVE POLYMERIZED TO A B-STAGE CURE, AT LEAST ONE SURFACE OF SAID SHEET HAVING THE CHARACTERISTIC OF BEING ADHESIVELY BONDED TO SAID RECEIVING SURFACE UPON SUBSTANTIAL COMPLETION OF POLYMERIZATION OF SAID ADHESIVE; AN IMPERMEABLE BACKING STRIP, IN CONTACT WITH, AND EXTENDING OVER SAID ONE SURFACE OF SAID SHEET; A PLURALITY DISPOSED STRAIN-RESPONSIVE SENSING CONDUCTOR, COPLANARLY ENCAPSULATED WITHIN SAID SHEET, THE RESISTANCE OF SAID SENSING CONDUCTOR BEING RESPONSIVE TO STRAIN TRANSMITTED FROM SAID RECEIVING SURFACE THROUGH SAID POLYMERIZED ADHESIVE; AND A PAIR OF LEAD CONDUCTORS EACH HAVING A FIRST END CONNECTED TO A CORRESPONDING TERMINUS OF SAID SENSING CONDUCTOR AND A SECOND END EXTENDING THROUGH, AND BEYOND, A BOUNDARY OF SAID SHEET.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |