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US1654401A Expired / Lapsed US ⏱️ 0.0 years remaining

Ceramic and method of making the same

Assignee: Individual
•
Filing: 1927-05-11
•
Granted: 1927-12-27
•
Expires: 1947-05-11
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Abstract

No abstract record available.

Inventors

  • 👤 Lynn B Bernheim

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 08:51
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/52; C04B41/80; C04B41/81; C04B41/89; C04B2111/00; C04B2111/54; C04B2111/542; C04B2111/545

Claims Analysis

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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) 1930-12-26 1931-06-27 1931-12-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1934-12-26 1935-06-27 1935-12-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1938-12-26 1939-06-27 1939-12-27 $7700.00 Window Closed / Lapsed

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