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US2965830A Expired / Lapsed US ⏱️ 0.0 years remaining

Temperature responsive control for battery charging circuit

Assignee: Individual
•
Filing: 1956-12-17
•
Granted: 1960-12-20
•
Expires: 1976-12-17
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Abstract

No abstract record available.

Inventors

  • 👤 Thomas G Isel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:57
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/16; H02J7/20

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1850449A Cited
US1874163A Cited
US2427729A Cited
US2422925A Cited
GB612972A Cited
GB691502A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-12-20 1964-06-20 1964-12-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-12-20 1968-06-20 1968-12-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-12-20 1972-06-20 1972-12-20 $7700.00 Window Closed / Lapsed

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