Patent US3218744A successfully refreshed from Google Patents.
US3218744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projector and transparent slide storage magazine therefor
Assignee: Argus Inc
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Filing: 1961-11-06
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Granted: 1965-11-23
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Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 Jacob D Danner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:19
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A MAGAZINE FOR STORING A PLURALITY OF TRANSPARENT SLIDES FOR REMOVAL ONE AT A TIME TO A PROJECTION GATE IN A SLIDE PROJECTOR INCLUDING A FIRST MEMBER HAVING A TOP WALL, A PAIR OF PARTIAL END WALLS AT THE ENDS OF THE TOP WALL, AND A PORTION OF A SIDE WALL; A SECOND MEMBER HAVING A BOTTOM WALL, A PAIR OF PARTIAL END WALLS AT THE ENDS OF THE BOTTOM WALL, AND A PORTION OF THE SIDE WALL; CONNECTION MEANS PIVOTALLY CONNECTING THE TWO MEMBERS TOGETHER AT THE PARTIAL END WALL PORTIONS SO AS TO PROVIDE BETWEEN SAID SIDE WALLS A SLIDE INJECTOR RECEIVING LENGTH AND AN OPEN SIDE OPPOSITE THE SIDE WALL; A PLURALITY OF PARTITIONS EXTENDING TOWARD EACH OTHER FROM SAID FIRST AND SECOND MEMBERS FOR DIVIDING THE MAGAZINE INTO A PLURALITY OF SLIDE COMPARTMENTS; AND BIASING MEANS FOR BIASING THE FIRST AND SECOND MEMBERS ABOUT SAID CONNECTING MEANS IN A DIRECTION TENDING TO CLOSE THE OPEN SIDE TO PREVENT WITHDRAWAL OF THE SLIDES THEREFROM.
Claim 2
Dependent Claim
167 words
A MAGAZINE FOR STORING A PLURALITY OF TRANSPARENT SLIDES FOR REMOVAL ONE AT A TIME TO A PROJECTION GATE IN A SLIDE PROJECTOR INCLUDING A FIRST MEMBER HAVING A TOP WALL, A PAIR OF PARTIAL END WALLS AT THE ENDS OF THE TOP WALL, AND A PORTION OF A SIDE WALL; A SECOND MEMBER HAVING A BOTTOM WALL, A PAIR OF PARTIAL END WALLS AT THE ENDS OF THE BOTTOM WALL, AND A PORTION OF THE SIDE WALL; CONNECTION MEANS PIVOTALLY CONNECTING THE TWO MEMBERS TOGETHER AT THE PARTIAL END WALL PORTIONS SO AS TO PROVIDE BETWEEN SAID SIDE WALLS A SLIDE INJECTOR RECEIVING LENGTH AND AN OPEN SIDE OPPOSITE THE SIDE WALL; A PLURALITY OF PARTITIONS EXTENDING TOWARD EACH OTHER FROM SAID FIRST AND SECOND MEMBERS FOR DIVIDING THE MAGAZINE INTO A PLURALITY OF SLIDE COMPARTMENTS; AND BIASING MEANS FOR BIASING THE FIRST AND SECOND MEMBERS ABOUT SAID CONNECTING MEANS IN A DIRECTION TENDING TO CLOSE THE OPEN SIDE TO PREVENT WITHDRAWAL OF THE SLIDES THEREFROM.
References Cited (Backward Citations)
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US2938288A
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US2942365A
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US2986070A
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |