US3245018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain gages
Assignee: Microdot Inc
•
Filing: 1958-08-14
•
Granted: 1966-04-05
•
Expires: 1978-08-14
Abstract
No abstract record available.
Inventors
- 👤 John D Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:04
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/16; G01B7/18; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2287; H; H01; H01C; H01C10/00; H01C10/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN A STRAIN GAGE, THE COMBINATION OF A METALLIC, TUBULAR STRAIN-DEFORMABLE BASE MEMBER, A STRAIN-RESPONSIVE ELONGATED RESISTANCE ELEMENT THE RESISTANCE OF WHICH VARIES IN ACCORDANCE WITH STRAINS OCCURRING LONGITUDINALLY THERETO, A MASS OF SOLID COMPACTABLE ELECTRICAL INSULATING MATERIAL MECHANICALLY LOCKING SAID RESISTANCE ELEMENT WITHIN SAID BASE MEMBER FOR DEFORMATION IN DIRECT PROPORTION TO DEFORMATION OF SAID BASE MEMBER, AND MEANS CONNECTABLE TO SAID RESISTANCE ELEMENT CAPABLE OF MONITORING THE RESISTANCE THEREOF.
Claim 2
Dependent Claim
71 words
IN A STRAIN GAGE, THE COMBINATION OF A METALLIC, TUBULAR STRAIN-DEFORMABLE BASE MEMBER, A STRAIN-RESPONSIVE ELONGATED RESISTANCE ELEMENT THE RESISTANCE OF WHICH VARIES IN ACCORDANCE WITH STRAINS OCCURRING LONGITUDINALLY THERETO, A MASS OF SOLID COMPACTABLE ELECTRICAL INSULATING MATERIAL MECHANICALLY LOCKING SAID RESISTANCE ELEMENT WITHIN SAID BASE MEMBER FOR DEFORMATION IN DIRECT PROPORTION TO DEFORMATION OF SAID BASE MEMBER, AND MEANS CONNECTABLE TO SAID RESISTANCE ELEMENT CAPABLE OF MONITORING THE RESISTANCE THEREOF.
References Cited (Backward Citations)
US948764A
Cited
US1263351A
Cited
US967579A
Cited
US1127373A
Cited
US1127374A
Cited
US1157916A
Cited
US1359400A
Cited
US1973629A
Cited
US2036458A
Cited
US2344648A
Cited
US2363181A
Cited
US2428433A
Cited
US2569714A
Cited
US2481371A
Cited
US2445660A
Cited
US2483839A
Cited
US2613306A
Cited
US2569499A
Cited
US2663781A
Cited
US2853765A
Cited
US2861162A
Cited
US2935709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |