Patent US3975039A successfully refreshed from Google Patents.
US3187253A
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Apparatus for measuring the straightness of travel of a movable member
Assignee: General Precision Inc
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Filing: 1961-04-27
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Granted: 1965-06-01
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Expires: 1981-04-27
Abstract
No abstract record available.
Inventors
- 👤 John H Whitmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/20; G01B7/00; G01B7/34; G01B7/345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
AN APPARATUS FOR DYNAMICALLY MEASURING THE STRAIGHTNESS OF TRAVEL OF A MOVABLE MEMBER COMPRISING; (A) ELONGATED CONDUCTIVE STRAIGHTNES REFERENCE MEANS CONSISTING OF A PLURALITY OF INDEPENDENT WIRE MEMBERS MAINTAINED IN A LONGITUDINALLY TENSIONED STATE; (B) MEANS MOUNTING SAID REFERENCE MEANS UPON SAID MOVABLE MEMBER IN A DIRECTION PARALLEL TO THE DIRECTION OF TRAVEL OF SAID MOVABLE MEMBER; (C) FIRST AND SECOND CONDUCTIVE PICKUP MEANS;
Claim 2
Independent Claim
64 words
AN APPARATUS FOR DYNAMICALLY MEASURING THE STRAIGHTNESS OF TRAVEL OF A MOVABLE MEMBER COMPRISING; (A) ELONGATED CONDUCTIVE STRAIGHTNES REFERENCE MEANS CONSISTING OF A PLURALITY OF INDEPENDENT WIRE MEMBERS MAINTAINED IN A LONGITUDINALLY TENSIONED STATE; (B) MEANS MOUNTING SAID REFERENCE MEANS UPON SAID MOVABLE MEMBER IN A DIRECTION PARALLEL TO THE DIRECTION OF TRAVEL OF SAID MOVABLE MEMBER; (C) FIRST AND SECOND CONDUCTIVE PICKUP MEANS;
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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |