US3135817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microscope focus adjustment means utilizing compound cam
Assignee: American Optical Corp
•
Filing: 1960-06-23
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Granted: 1964-06-02
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Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Norman A Wrigglesworth
- 👤 Leopold R Jasienski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:29
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/24; G02B21/241; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102; Y10T74/2133; Y10T74/2136
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
A MICROSCOPE COMPRISING A BASE, A HOLLOW ARM EXTENDING UPWARDLY FROM SAID BASE, A STAGE ADJACENT THE LOWER END OF SAID ARM, AND OPTICAL MEANS FREELY SLIDABLY CARRIED BY THE UPPER END OF SAID ARM FOR UP AND DOWN MOVEMENT TO FOCUS UPON AN OBJECT ON SAID STAGE; LEVER MEANS PIVOTALLY CARRIED WITHIN SAID ARM AND INCLUDING A SUPPORT PORTION UPON WHICH SAID OPTICAL MEANS RESTS AND IS SUPPORTED, AND COMPOUND CAM MEANS ENGAGING SAID LEVER MEANS TO RAISE AND LOWER SAID SUPPORT PORTION THEREOF TO EFFECT COARSE AND FINE ADJUSTMENT OF SAID OPTICAL MEANS.
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |