US3134942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple probe resistivity measuring apparatus with workpiece support means
Assignee: Individual
•
Filing: 1960-12-13
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Granted: 1964-05-26
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Expires: 1980-12-13
Abstract
No abstract record available.
Inventors
- 👤 Richard E Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:11
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/02; G01R1/06; G01R1/067; G01R1/06705
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A RESISTIVITY MEASURING DEVICE COMPRISING IN COMBINATION: (A) A HORIZONTAL BASE PLATE, (B) A PLURALITY OF CONTACT POINT ARMS RADIALLY OUTWARDLY DISPOSED RELATIVE TO THE CENTER OF SAID BASE PLATE AND PIVOTALLY MOUNTED ON SAID BASE PLATE AT CIRCUMFERENTIALLY SPACED POSITIONS AROUND SAID CENTER SO AS TO SWING IN PLANES PERPENDICULAR TO SAID BASE PLATE AND INTERSECTING AT SUBSTANTIALLY SAID CENTER OF SAID BASE PLATE, (C) DOWNWARDLY PROJECTING CONTACT POINTS ON THE INNER ENDS OF SAID ARMS, (D) A WORK TABLE, (E) MEANS FOR SUPPORTING SAID WORK TABLE ON SAID BASE PLATE UNDER SAID CONTACT POINTS, (F) MEANS ON SAID BASE PLATE FOR EFFECTING VERTICAL MOVEMENT OF SAID ARMS AND CONTACT POINTS RELATIVE TO SAID WORK TABLE AND AN INDICATING METER AND A SOURCE OF ELECTRICAL POWER CONNECTABLE IN SERIES BETWEEN PAIRS OF SAID CONTACT POINTS.
Claim 2
Dependent Claim
136 words
A RESISTIVITY MEASURING DEVICE COMPRISING IN COMBINATION: (A) A HORIZONTAL BASE PLATE, (B) A PLURALITY OF CONTACT POINT ARMS RADIALLY OUTWARDLY DISPOSED RELATIVE TO THE CENTER OF SAID BASE PLATE AND PIVOTALLY MOUNTED ON SAID BASE PLATE AT CIRCUMFERENTIALLY SPACED POSITIONS AROUND SAID CENTER SO AS TO SWING IN PLANES PERPENDICULAR TO SAID BASE PLATE AND INTERSECTING AT SUBSTANTIALLY SAID CENTER OF SAID BASE PLATE, (C) DOWNWARDLY PROJECTING CONTACT POINTS ON THE INNER ENDS OF SAID ARMS, (D) A WORK TABLE, (E) MEANS FOR SUPPORTING SAID WORK TABLE ON SAID BASE PLATE UNDER SAID CONTACT POINTS, (F) MEANS ON SAID BASE PLATE FOR EFFECTING VERTICAL MOVEMENT OF SAID ARMS AND CONTACT POINTS RELATIVE TO SAID WORK TABLE AND AN INDICATING METER AND A SOURCE OF ELECTRICAL POWER CONNECTABLE IN SERIES BETWEEN PAIRS OF SAID CONTACT POINTS.
References Cited (Backward Citations)
FR887651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |