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Door-lock.

Assignee: F P Pfleghar & Son
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Filing: —
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Granted: 1909-03-09
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Expires: 1926-03-09
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Abstract

No abstract record available.

Inventors

  • 👤 Frank P Pfleghar

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 18:31
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/002; E05B13/004; Y; Y10; Y10S; Y10S292/00; Y10S292/24; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/577; Y10T70/80; Y10T70/8432; Y10T70/8649

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) 1912-03-08 1912-09-07 1913-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1916-03-08 1916-09-07 1917-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1920-03-08 1920-09-07 1921-03-09 $7700.00 Window Closed / Lapsed

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