US3372578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the surface finish of rolled metal
Assignee: Republic Steel Corp
•
Filing: 1963-12-02
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Granted: 1968-03-12
•
Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 William C Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:26
CPC Classifications
B; B21; B21B; B21B38/00; G; G01; G01B; G01B7/00; G01B7/34; B21B1/00; B21B1/22; B21B1/24; B21B1/28; B21B2267/00; B21B2267/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN APPARATUS FOR EXAMINING AND INDICATING SURFACE ROUGHNESS CHARACTERISTICS OF STEEL STRIP OR THE LIKE, IN COMBINATION, A SENSING DEVICE MOVABLE ALONG THE SURFACE TO BE EXAMINED, FOR PRODUCING ELECTRICAL SIGNALS REPRESENTING THE CONTOUR OF SAID SURFACE, MEANS CONTROLLED BY SAID SENSING DEVICE AND HAVING AN INDICATING AREA, FOR PRODUCING IN SAID AREA A VISIBLE RESPONSE TO SAID SIGNALS FOR DETERMINATION OF A CONTOUR PROPERTY OF SAID SURFACE, REVERSIBLE DRIVING MEANS INCLUDING CONTROL MEANS FOR EFFECTING REVERSAL THEREOF, FOR DISPLACING THE SENSING DEVICE SELEC-
Claim 2
Dependent Claim
84 words
IN APPARATUS FOR EXAMINING AND INDICATING SURFACE ROUGHNESS CHARACTERISTICS OF STEEL STRIP OR THE LIKE, IN COMBINATION, A SENSING DEVICE MOVABLE ALONG THE SURFACE TO BE EXAMINED, FOR PRODUCING ELECTRICAL SIGNALS REPRESENTING THE CONTOUR OF SAID SURFACE, MEANS CONTROLLED BY SAID SENSING DEVICE AND HAVING AN INDICATING AREA, FOR PRODUCING IN SAID AREA A VISIBLE RESPONSE TO SAID SIGNALS FOR DETERMINATION OF A CONTOUR PROPERTY OF SAID SURFACE, REVERSIBLE DRIVING MEANS INCLUDING CONTROL MEANS FOR EFFECTING REVERSAL THEREOF, FOR DISPLACING THE SENSING DEVICE SELEC-
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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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |