Patent US3092993A successfully refreshed from Google Patents.
US3092993A
Expired / Lapsed
US
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Strain gages and methods of installing the same
Assignee: Microdot Inc
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Filing: 1961-04-10
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Granted: 1963-06-11
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Expires: 1981-04-10
Abstract
No abstract record available.
Inventors
- 👤 John D Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:58
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A WIRE STRAIN GAGE COMPRISING A FLEXIBLE INSULATING RECEPTACLE; A STRAIN RESPONSIVE RESISTANCE FILAMENT MOUNTED ON THE INTERIOR SURFACE OF SAID RECEPTACLE SO AS TO BE IN CONTACT WITH THE TEST SURFACE; A FRICTIONAL AND INSULATING COATING APPLIED TO THE SURFACE OF SAID FILAMENT; AND MEANS FOR PRODUCING A VACUUM IN SAID RECEPTACLE WHEN THE GAGE IS APPLIED TO A TEST SURFACE.
Claim 2
Dependent Claim
62 words
A WIRE STRAIN GAGE COMPRISING A FLEXIBLE INSULATING RECEPTACLE; A STRAIN RESPONSIVE RESISTANCE FILAMENT MOUNTED ON THE INTERIOR SURFACE OF SAID RECEPTACLE SO AS TO BE IN CONTACT WITH THE TEST SURFACE; A FRICTIONAL AND INSULATING COATING APPLIED TO THE SURFACE OF SAID FILAMENT; AND MEANS FOR PRODUCING A VACUUM IN SAID RECEPTACLE WHEN THE GAGE IS APPLIED TO A TEST SURFACE.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |