Patent US3220326A successfully refreshed from Google Patents.
US3220326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating devices for cameras
Assignee: Eastman Kodak Co
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Filing: 1964-01-13
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Granted: 1965-11-30
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Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 James F Scudder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:35
CPC Classifications
G; G03; G03B; G03B43/00; G03B7/00; G03B7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A TEST SYSTEM FOR A BATTERY, COMPRISING IN COMBINATION: A SIGNALLING DEVICE HAVING FIRST AND SECOND POSITIONS OF OPERATION AND NORMALLY OCCUPYING SAID FIRST POSITION; ELECTRICAL DRIVE MEANS ENERGIZBLE BY SAID BATTERY AND EFFECTIVE, UPON ENERGIZATION THEREOF ABOVE A PREDETERMINED LEVEL, FOR MOVING SAID SIGNALLING DEVICE TO ITS SECOND POSITION; A VARIABLY CONDUCTING AMPLIFIER FOR CONTROLLING ENERGIZATION OF SAID DRIVE MEANS IN ACCORDANCE WITH CONDUCTION BY SAID AMPLIFIER; AND PHOTOCELL MEANS CONTROLLING CONDUCTION OF SAID AMPLIFIER FOR ENERGIZING SAID DRIVE MEANS ABOVE SAID LEVEL WHEN AND ONLY WHEN (1) SAID PHOTOCELL IS BRIGHTLY ILLUMINATED AND (2) THE VOLTAGE OUTPUT OF SAID BATTERY IS ABOVE A PREDETERMINED LEVEL.
Claim 2
Dependent Claim
107 words
A TEST SYSTEM FOR A BATTERY, COMPRISING IN COMBINATION: A SIGNALLING DEVICE HAVING FIRST AND SECOND POSITIONS OF OPERATION AND NORMALLY OCCUPYING SAID FIRST POSITION; ELECTRICAL DRIVE MEANS ENERGIZBLE BY SAID BATTERY AND EFFECTIVE, UPON ENERGIZATION THEREOF ABOVE A PREDETERMINED LEVEL, FOR MOVING SAID SIGNALLING DEVICE TO ITS SECOND POSITION; A VARIABLY CONDUCTING AMPLIFIER FOR CONTROLLING ENERGIZATION OF SAID DRIVE MEANS IN ACCORDANCE WITH CONDUCTION BY SAID AMPLIFIER; AND PHOTOCELL MEANS CONTROLLING CONDUCTION OF SAID AMPLIFIER FOR ENERGIZING SAID DRIVE MEANS ABOVE SAID LEVEL WHEN AND ONLY WHEN (1) SAID PHOTOCELL IS BRIGHTLY ILLUMINATED AND (2) THE VOLTAGE OUTPUT OF SAID BATTERY IS ABOVE A PREDETERMINED LEVEL.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |