Patent US3197783A successfully refreshed from Google Patents.
US3197783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric camera control apparatus
Assignee: Keystone Camera Co Inc
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Filing: 1962-09-18
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Granted: 1965-07-27
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Expires: 1982-09-18
Abstract
No abstract record available.
Inventors
- 👤 Ahn Byong-Ho
- 👤 Silbovitz Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:41
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A MOTION PICTURE CAMERA CONTROL SYSTEM COMPRISING AN ELECTRIC MOTOR, A SOURCE OF ELECTRICALLY CONNECTED IN CIRCUIT THEREWITH TO ENERGIZE THE MOTOR, A LIGHT SOURCE CONNECTED ACROSS SAID ELECTRICAL SOURCE, CONTROL MEANS CONNECTED IN CIRCUIT WITH SAID ELECTRICAL SOURCE AND SAID LIGHT SOURCE TO ENERGIZE SAID LIGHT SOURCE, AND A LIGHT SENSITIVE PHOTOCELL CONNECTED IN CIRCUIT CONTROLLING RELATION TO SAID MOTOR RESPONSIVE TO LIGHT FROM SAID SOURCE TO ENERGIZE SAID MOTOR UNDER THE CONTROL OF SAID CONTROL MEANS ONLY WHEN THE LEVEL OF RADIATION FROM SAID SOURCE IMPINGING ON SAID PHOTOCELL IS ABOVE A PREDETERMINED VALUE.
Claim 2
Dependent Claim
96 words
A MOTION PICTURE CAMERA CONTROL SYSTEM COMPRISING AN ELECTRIC MOTOR, A SOURCE OF ELECTRICALLY CONNECTED IN CIRCUIT THEREWITH TO ENERGIZE THE MOTOR, A LIGHT SOURCE CONNECTED ACROSS SAID ELECTRICAL SOURCE, CONTROL MEANS CONNECTED IN CIRCUIT WITH SAID ELECTRICAL SOURCE AND SAID LIGHT SOURCE TO ENERGIZE SAID LIGHT SOURCE, AND A LIGHT SENSITIVE PHOTOCELL CONNECTED IN CIRCUIT CONTROLLING RELATION TO SAID MOTOR RESPONSIVE TO LIGHT FROM SAID SOURCE TO ENERGIZE SAID MOTOR UNDER THE CONTROL OF SAID CONTROL MEANS ONLY WHEN THE LEVEL OF RADIATION FROM SAID SOURCE IMPINGING ON SAID PHOTOCELL IS ABOVE A PREDETERMINED VALUE.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |