Patent US2295942A successfully refreshed from Google Patents.
US3175458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical apparatus for positioning a workpiece
Assignee: Motorola Solutions Inc
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Filing: 1960-02-23
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Granted: 1965-03-30
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Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Costa Harry Da
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
G; G02; G02B; G02B21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
OPTICAL APPARATUS FOR FACILITATING ANGULAR POSITIONING OF A WORKPIECE OF MICROSCOPIC SIZE RELATIVE TO A REFERENCE PLANE, SAID OPTICAL APPARATUS INCLUDING IN COMBINATION, A MICROSCOPE HAVING A RETICLE THEREIN PROVIDING A REFERENCE CROSS WHICH IS VISIBLE THROUGH THE MICROSCOPE AND REPRESENTS THE REFERENCE PLANE, MEANS FOR SUPPORTING THE WORKPIECE IN THE FIELD OF SAID MICROSCOPE WITH A SELECTED SURFACE THEREOF ON THE OPTICAL AXIS OF SAID MICROSCOPE, A LIGHT SOURCE PROVIDING DIFFUSE LIGHT IN THE FORM OF A CROSS WHOSE DIMENSIONS ARE GROSS COMPARED TO THE DIMENSIONS OF THE WORKPIECE, SAID LIGHT SOURCE BEING SUPPORTED IN A POSITION OFFSET FROM THE OPTICAL AXIS
Claim 2
Dependent Claim
103 words
OPTICAL APPARATUS FOR FACILITATING ANGULAR POSITIONING OF A WORKPIECE OF MICROSCOPIC SIZE RELATIVE TO A REFERENCE PLANE, SAID OPTICAL APPARATUS INCLUDING IN COMBINATION, A MICROSCOPE HAVING A RETICLE THEREIN PROVIDING A REFERENCE CROSS WHICH IS VISIBLE THROUGH THE MICROSCOPE AND REPRESENTS THE REFERENCE PLANE, MEANS FOR SUPPORTING THE WORKPIECE IN THE FIELD OF SAID MICROSCOPE WITH A SELECTED SURFACE THEREOF ON THE OPTICAL AXIS OF SAID MICROSCOPE, A LIGHT SOURCE PROVIDING DIFFUSE LIGHT IN THE FORM OF A CROSS WHOSE DIMENSIONS ARE GROSS COMPARED TO THE DIMENSIONS OF THE WORKPIECE, SAID LIGHT SOURCE BEING SUPPORTED IN A POSITION OFFSET FROM THE OPTICAL AXIS
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |