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US1137030A Expired / Lapsed US ⏱️ 0.0 years remaining

Dray cell.

Assignee: National Carbon Co Inc
•
Filing: 1912-10-18
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Granted: 1915-04-27
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Expires: 1932-10-18
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Abstract

No abstract record available.

Inventors

  • 👤 Edward C Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:21
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/08

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1918-04-26 1918-10-26 1919-04-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1922-04-26 1922-10-26 1923-04-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1926-04-26 1926-10-26 1927-04-27 $7700.00 Window Closed / Lapsed

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