US3176581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Still picture projector
Assignee: View Master International Group
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Filing: 1962-11-13
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Granted: 1965-04-06
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Expires: 1982-11-13
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Golden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:18
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A PROJECTOR, A BASE PORTION, A SUBSTANTIALLY VERTICAL APERTURE PLATE HAVING AN APERTURE POSITIONED ABOVE THE BASE PORTION, PROJECTOR LENS MEANS PROJECTING FORWARDLY FROM THE APERTURE PLATE AND IN AN ELEVATED POSITION, AND A GUIDE CHANNEL POSITIONED UNDER THE LENS MEANS AND FACING UPWARDLY AND FORWARDLY, THE UPPER END OF THE GUIDE CHANNEL BEING ADJACENT THE LOWER END OF THE APERTURE FOR GUIDING A PICTURE STRIP TO AND FROM THE APERTURE, THE GUIDE CHANNEL BEING CURVED SO AS TO EXTEND SUBSTANTIALLY VERTICALLY AT THE UPPER END THEREOF AND SUBSTANTIALLY HORIZONTALLY AT THE LOWER END THEREOF.
Claim 2
Dependent Claim
96 words
IN A PROJECTOR, A BASE PORTION, A SUBSTANTIALLY VERTICAL APERTURE PLATE HAVING AN APERTURE POSITIONED ABOVE THE BASE PORTION, PROJECTOR LENS MEANS PROJECTING FORWARDLY FROM THE APERTURE PLATE AND IN AN ELEVATED POSITION, AND A GUIDE CHANNEL POSITIONED UNDER THE LENS MEANS AND FACING UPWARDLY AND FORWARDLY, THE UPPER END OF THE GUIDE CHANNEL BEING ADJACENT THE LOWER END OF THE APERTURE FOR GUIDING A PICTURE STRIP TO AND FROM THE APERTURE, THE GUIDE CHANNEL BEING CURVED SO AS TO EXTEND SUBSTANTIALLY VERTICALLY AT THE UPPER END THEREOF AND SUBSTANTIALLY HORIZONTALLY AT THE LOWER END THEREOF.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |