US3563637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable plural lens system
Assignee: PROGRESSIVE IND CORP
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Filing: 1969-05-19
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Granted: 1971-02-16
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Expires: 1989-05-19
Abstract
Abstract MULTIPLE PRINTS OF DIFFERENT SIZES ARE PRODUCED ON A PHOTOGRAPHIC PRINTER INCORPORATING A PLURALITY OF LENSES EACH SUPPORTED FOR INDEPENDENT UNIVERSAL ANGULAR MOVEMENT WITHIN A BASS WHICH, IN TURN, IS SUPPORTED FOR UNIVERSAL ANGULAR MOVEMENT WITHIN A COMMON BARREL. THE BALL IS ALSO ROTATABLTY AND AXIALLY ADJUSTABLE WITHIN THE BARREL, AND THE LENSES ARE ALSO INDIVIDUALLY ADJUSTABLE ON THEIR OPTICAL AXES.
Inventors
- 👤 Harold G Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:06
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |