US3153690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Focusing telescope
Assignee: Bausch and Lomb Inc
•
Filing: 1961-03-27
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Granted: 1964-10-20
•
Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Kuyt Frits
- 👤 Eugene L Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:48
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
A TELESCOPE COMPRISING A BODY TUBE, AN EYEPIECE TUBE AND AN INTERIOR FOCUSING TUBE WHICH ARE MOLDED FROM AN ORGANIC PLASTIC MATERIAL OR THE LIKE AND ARE COAXIALLY MOUNTED, AN OPTICAL SYSTEM THEREFOR COOPERATIVELY MOUNTED IN SAID TUBES, SAID SYSTEM HAVING AN EYEPIECE LENS HELD IN SAID EYEPIECE TUBE AND A PLURALITY OF ERECTOR LENSES FIXED IN SAID INTERIOR TUBE IN MUTUAL OPTICAL ALIGNMENT, AN INTERIOR ELONGATED BEARING SURFACE FORMED IN THE REAR END OF SAID BODY TUBE, AN EXTERIOR ELONGATED BEARING SURFACE FORMED ON THE FRONT END OF SAID EYEPIECE TUBE AND HAVING A SLIDING FIT WITHIN SAID INTERIOR SURFACE WHEREBY THE EYEPIECE IS INDEPENDENTLY SUPPORTED IN THE BODY TUBE FOR FOCUSING MOVEMENT, MEANS FOR SUPPORTING THE FRONT END OF SAID FOCUSING TUBE FOR RELATIVE ROTATIONAL AND LONGITUDINAL MOTION ON THE INTERIOR SURFACE OF SAID BODY TUBE, A FOCUSING THREAD FORMED ON THE OUTER REAR PART OF SAID INTERIOR TUBE AND EXTENDING AN AXIAL DISTANCE SUBSTANTIALLY LONGER THAN THE FOCUSING MOVEMENT THEREOF, A MATING THREAD FORMED ON THE INNER SURFACE OF SAID BODY TUBE AND LOOSELY FITTED TO THE FORWARD PART OF SAID FOCUSING THREAD, AN INTERIOR THREAD FORMED IN THE FORE PART OF SAID EYEPIECE TUBE AND FITTED TO RECEIVE THE REAR PART OF SAID FOCUSING THREAD,
Claim 2
Dependent Claim
209 words
A TELESCOPE COMPRISING A BODY TUBE, AN EYEPIECE TUBE AND AN INTERIOR FOCUSING TUBE WHICH ARE MOLDED FROM AN ORGANIC PLASTIC MATERIAL OR THE LIKE AND ARE COAXIALLY MOUNTED, AN OPTICAL SYSTEM THEREFOR COOPERATIVELY MOUNTED IN SAID TUBES, SAID SYSTEM HAVING AN EYEPIECE LENS HELD IN SAID EYEPIECE TUBE AND A PLURALITY OF ERECTOR LENSES FIXED IN SAID INTERIOR TUBE IN MUTUAL OPTICAL ALIGNMENT, AN INTERIOR ELONGATED BEARING SURFACE FORMED IN THE REAR END OF SAID BODY TUBE, AN EXTERIOR ELONGATED BEARING SURFACE FORMED ON THE FRONT END OF SAID EYEPIECE TUBE AND HAVING A SLIDING FIT WITHIN SAID INTERIOR SURFACE WHEREBY THE EYEPIECE IS INDEPENDENTLY SUPPORTED IN THE BODY TUBE FOR FOCUSING MOVEMENT, MEANS FOR SUPPORTING THE FRONT END OF SAID FOCUSING TUBE FOR RELATIVE ROTATIONAL AND LONGITUDINAL MOTION ON THE INTERIOR SURFACE OF SAID BODY TUBE, A FOCUSING THREAD FORMED ON THE OUTER REAR PART OF SAID INTERIOR TUBE AND EXTENDING AN AXIAL DISTANCE SUBSTANTIALLY LONGER THAN THE FOCUSING MOVEMENT THEREOF, A MATING THREAD FORMED ON THE INNER SURFACE OF SAID BODY TUBE AND LOOSELY FITTED TO THE FORWARD PART OF SAID FOCUSING THREAD, AN INTERIOR THREAD FORMED IN THE FORE PART OF SAID EYEPIECE TUBE AND FITTED TO RECEIVE THE REAR PART OF SAID FOCUSING THREAD,
References Cited (Backward Citations)
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US2155569A
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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) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |