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US1590629A Expired / Lapsed US ⏱️ 0.0 years remaining

Cover for doorknobs

Assignee: Individual
•
Filing: 1925-12-19
•
Granted: 1926-06-29
•
Expires: 1945-12-19
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Abstract

No abstract record available.

Inventors

  • 👤 Frederic S Julius

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 01:58
CPC Classifications
E; E05; E05B; E05B1/00; E05B1/0061; Y; Y10; Y10S; Y10S16/00; Y10S16/12; Y10S292/00; Y10S292/02; Y10T; Y10T292/00; Y10T292/82

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1929-06-28 1929-12-28 1930-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1933-06-28 1933-12-28 1934-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1937-06-28 1937-12-28 1938-06-29 $7700.00 Window Closed / Lapsed

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