US3174048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive battery charging circuits
Assignee: Individual
•
Filing: 1961-05-09
•
Granted: 1965-03-16
•
Expires: 1981-05-09
Abstract
No abstract record available.
Inventors
- 👤 Richard F Snyder
- 👤 Eliot S Gerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:20
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/02; H02J4/00; H02J4/20; H02J4/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN AN ENGINE POWERED VEHICLE OF THE TYPE HAVING A MECHANICALLY DRIVE ALTERNATOR, A RECTIFIER CONNECTED TO SAID ALTERNATOR AND A STORAGE BATTERY CONNECTED TO SAID RECTIFIER CIRCUIT, THE IMPROVEMENT COMPRISING A DOUBLE POLE TWO-POSITION SWITCH, A STEP-DOWN TRANSFORMER, A FEMALE ELECTRICAL RECEPTACLE AND A MALE ELECTRICAL RECEPTACLE, THE LOW VOLTAGE WINDING OF SAID TRANSFORMER BEING CONNECTED BETWEEN THE INPUT TERMINALS OF SAID RECTIFIER, ONE
Claim 2
Dependent Claim
65 words
IN AN ENGINE POWERED VEHICLE OF THE TYPE HAVING A MECHANICALLY DRIVE ALTERNATOR, A RECTIFIER CONNECTED TO SAID ALTERNATOR AND A STORAGE BATTERY CONNECTED TO SAID RECTIFIER CIRCUIT, THE IMPROVEMENT COMPRISING A DOUBLE POLE TWO-POSITION SWITCH, A STEP-DOWN TRANSFORMER, A FEMALE ELECTRICAL RECEPTACLE AND A MALE ELECTRICAL RECEPTACLE, THE LOW VOLTAGE WINDING OF SAID TRANSFORMER BEING CONNECTED BETWEEN THE INPUT TERMINALS OF SAID RECTIFIER, ONE
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |