Patent US3221598A successfully refreshed from Google Patents.
US3221598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable control means for slide projectors or the like
Assignee: View Master International Group
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Filing: 1962-12-31
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Granted: 1965-12-07
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Walter J Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:55
CPC Classifications
G; G03; G03B; G03B23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
CONTROL MEANS FOR A SLIDE PROJECTOR HAVING A HOUSING AND A CONTROL PANEL COMPRISING SAID CONTROL PANEL HAVING A CAVITY WITH FIRST ELECTRIC CONTACT MEANS THEREIN, A REMOTECONTROL HANDPIECE ADAPTED TO BE RECEIVED IN SAID CAVITY AND HAVING SECOND ELECTRIC CONTACT MEANS THEREON COMPLEMENTARY WITH SAID FIRST CONTACT MEANS, WHICH HANDPIECE HAS A FACE ADAPTED TO BLEND IN WITH THE OVER-ALL CONFIGURATION OF THE CONTROL PANEL, SAID HANDPIECE BEING DETACHABLY SECURED TO SAID PROJECTOR BY MATING ENGAGEMENT OF SAID FIRST ELECTRIC CONTACT MEANS WITH SECOND ELECTRIC CONTACT MEANS FOR OPERATION OF THE PROJECTOR, THE MATING ENGAGEMENT OF SAID FIRST AND SECOND CONTACT MEANS SERVING AS THE SOLE MEANS FOR DETACHABLY SECURING SAID HAND PIECE TO SAID PROJECTOR, SAID HANDPIECE BEING ADAPTED TO BE DETACHED FROM SAID PROJECTOR FOR ENGAGEMENT OF THE SECOND ELECTRIC CONTACT MEANS WITH COMPLEMENTARY CONTACT MEANS ON ONE END OF ELONGATED, FLEXIBLE, ELECTRIC CONDUCTOR MEANS, SAID FIRST ELECTRIC CONTACT MEANS BEING ADAPTED FOR ENGAGEMENT WITH OTHER COMPLEMENTARY CONTACT MEANS ON THE OTHER END OF SAID ELECTRIC CONDUCTOR MEANS, WHEREBY SAID PROJECTOR MAY BE OPERATED REMOTELY BY SAID HANDPIECE.
Claim 2
Dependent Claim
181 words
CONTROL MEANS FOR A SLIDE PROJECTOR HAVING A HOUSING AND A CONTROL PANEL COMPRISING SAID CONTROL PANEL HAVING A CAVITY WITH FIRST ELECTRIC CONTACT MEANS THEREIN, A REMOTECONTROL HANDPIECE ADAPTED TO BE RECEIVED IN SAID CAVITY AND HAVING SECOND ELECTRIC CONTACT MEANS THEREON COMPLEMENTARY WITH SAID FIRST CONTACT MEANS, WHICH HANDPIECE HAS A FACE ADAPTED TO BLEND IN WITH THE OVER-ALL CONFIGURATION OF THE CONTROL PANEL, SAID HANDPIECE BEING DETACHABLY SECURED TO SAID PROJECTOR BY MATING ENGAGEMENT OF SAID FIRST ELECTRIC CONTACT MEANS WITH SECOND ELECTRIC CONTACT MEANS FOR OPERATION OF THE PROJECTOR, THE MATING ENGAGEMENT OF SAID FIRST AND SECOND CONTACT MEANS SERVING AS THE SOLE MEANS FOR DETACHABLY SECURING SAID HAND PIECE TO SAID PROJECTOR, SAID HANDPIECE BEING ADAPTED TO BE DETACHED FROM SAID PROJECTOR FOR ENGAGEMENT OF THE SECOND ELECTRIC CONTACT MEANS WITH COMPLEMENTARY CONTACT MEANS ON ONE END OF ELONGATED, FLEXIBLE, ELECTRIC CONDUCTOR MEANS, SAID FIRST ELECTRIC CONTACT MEANS BEING ADAPTED FOR ENGAGEMENT WITH OTHER COMPLEMENTARY CONTACT MEANS ON THE OTHER END OF SAID ELECTRIC CONDUCTOR MEANS, WHEREBY SAID PROJECTOR MAY BE OPERATED REMOTELY BY SAID HANDPIECE.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |