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US2642735A Expired / Lapsed US ⏱️ 0.0 years remaining

Key-in-knob lock

Assignee: National Brass Co
•
Filing: 1948-09-02
•
Granted: 1953-06-23
•
Expires: 1968-09-02
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Abstract

No abstract record available.

Inventors

  • 👤 Quigley Herbert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 13:39
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/542; Y10T70/5434; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7667; Y10T70/7706; Y10T70/7712

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US348656A Cited
US626341A Cited
US1876576A Cited
US1991031A Cited
US1902343A Cited
US2018093A Cited
US2264239A Cited
US2282213A Cited
US2293856A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-06-22 1956-12-22 1957-06-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-06-22 1960-12-22 1961-06-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-06-22 1964-12-22 1965-06-23 $7700.00 Window Closed / Lapsed

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