US3356922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic battery charging circuit
Assignee: Amphenol Corp
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Filing: 1965-04-08
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Granted: 1967-12-05
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Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:43
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J7/00; H02J7/02; H02J7/60; H02J7/61; H02J7/80; H02J7/82; H02J7/90; H02J7/94; H02J7/947; Y; Y02; Y02B; Y02B70/00; Y02B70/30; Y04; Y04S; Y04S20/00; Y04S20/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN AN ELECTRICAL SYSTEM FOR EMPLOYING RECHARGEABLE BATTERIES: FIRST CIRCUIT MEANS CONNECTIBLE WITH A MAIN BATTERY, SECOND CIRCUIT MEANS CONNECTIBLE WITH A TIMING BATTERY, THIRD CIRCUIT MEANS OPERATIVE ON DISCHARGE CURRENT IN THE FIRST CIRCUIT MEANS TO SUPPLY THEREFROM CHARGING CURRENT IN THE SECOND CIRCUIT MEANS, FOURTH CIRCUIT MEANS OPERATIVE TO SUPPLY CHARGING CURRENT IN THE FIRST CIRCUIT MEANS AND TO DRAW DISCHARGE CURRENT IN THE SECOND CIRCUIT MEANS,
Claim 2
Dependent Claim
69 words
IN AN ELECTRICAL SYSTEM FOR EMPLOYING RECHARGEABLE BATTERIES: FIRST CIRCUIT MEANS CONNECTIBLE WITH A MAIN BATTERY, SECOND CIRCUIT MEANS CONNECTIBLE WITH A TIMING BATTERY, THIRD CIRCUIT MEANS OPERATIVE ON DISCHARGE CURRENT IN THE FIRST CIRCUIT MEANS TO SUPPLY THEREFROM CHARGING CURRENT IN THE SECOND CIRCUIT MEANS, FOURTH CIRCUIT MEANS OPERATIVE TO SUPPLY CHARGING CURRENT IN THE FIRST CIRCUIT MEANS AND TO DRAW DISCHARGE CURRENT IN THE SECOND CIRCUIT MEANS,
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |