Patent US1742137A successfully refreshed from Google Patents.
US3264545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural source charging circuit for rechargeable flashlight
Assignee: Bright Star Industries Inc
•
Filing: 1964-03-23
•
Granted: 1966-08-02
•
Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Kott Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:21
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/08; F21L4/085; H; H02; H02J; H02J2207/00; H02J2207/40; Y; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/21; Y10S320/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN COMBINATION WITH AN ELECTRICAL SYSTEM COMPRISING A SOURCE BATTERY, A GENERATOR, A UTILIZATION DEVICE, AN ELECTRICAL CONNECTION BETWEEN SAID BATTERY AND SAID GENERATOR, AND AN ELECTRICAL CONNECTION BETWEEN SAID GENERATOR AND SAID UTILIZATION DEVICE INCLUDING A SWITCH; A CHARGING CIRCUIT FOR A SECOND BATTERY COMPRISING FIRST AND SECOND CHARGING CIRCUIT BRANCHES EACH ADAPTED TO BE CONNECTED AT ONE END TO A SECOND BATTERY, SAID FIRST BRANCH COMPRISING A FIRST RESISTANCE, SAID SECOND BRANCH COMPRISING A SECOND RESISTANCE THE MAGNITUDE OF WHICH IS MANY TIMES SMALLER THAN THAT OF SAID FIRST RESISTANCE, THE OTHER END OF SAID FIRST BRANCH BEING CONNECTED TO SAID SOURCE BATTERY INDEPENDENTLY OF SAID SWITCH, THE OTHER END OF SAID SECOND BRANCH BEING CONNECTED TO SAID SWITCH, SAID SWITCH CONNECTING SAID SECOND BRANCH TO AND DISCONNECTING SAID SECOND BRANCH FROM SAID GENERATOR WHEN SAID SWITCH RESPECTIVELY CONNECTS AND DISCONNECTS SAID UTILIZATION DEVICE RELATIVE TO SAID GENERATOR.
Claim 2
Dependent Claim
150 words
IN COMBINATION WITH AN ELECTRICAL SYSTEM COMPRISING A SOURCE BATTERY, A GENERATOR, A UTILIZATION DEVICE, AN ELECTRICAL CONNECTION BETWEEN SAID BATTERY AND SAID GENERATOR, AND AN ELECTRICAL CONNECTION BETWEEN SAID GENERATOR AND SAID UTILIZATION DEVICE INCLUDING A SWITCH; A CHARGING CIRCUIT FOR A SECOND BATTERY COMPRISING FIRST AND SECOND CHARGING CIRCUIT BRANCHES EACH ADAPTED TO BE CONNECTED AT ONE END TO A SECOND BATTERY, SAID FIRST BRANCH COMPRISING A FIRST RESISTANCE, SAID SECOND BRANCH COMPRISING A SECOND RESISTANCE THE MAGNITUDE OF WHICH IS MANY TIMES SMALLER THAN THAT OF SAID FIRST RESISTANCE, THE OTHER END OF SAID FIRST BRANCH BEING CONNECTED TO SAID SOURCE BATTERY INDEPENDENTLY OF SAID SWITCH, THE OTHER END OF SAID SECOND BRANCH BEING CONNECTED TO SAID SWITCH, SAID SWITCH CONNECTING SAID SECOND BRANCH TO AND DISCONNECTING SAID SECOND BRANCH FROM SAID GENERATOR WHEN SAID SWITCH RESPECTIVELY CONNECTS AND DISCONNECTS SAID UTILIZATION DEVICE RELATIVE TO SAID GENERATOR.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |