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US1592462A Expired / Lapsed US ⏱️ 0.0 years remaining

Guard for hypodermic needles

Assignee: De Sanno & Hoskins Inc
•
Filing: 1921-03-08
•
Granted: 1926-07-13
•
Expires: 1941-03-08
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Abstract

No abstract record available.

Inventors

  • 👤 Macgregor John

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 22:29
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/34; A61M5/3202

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) 1929-07-12 1930-01-11 1930-07-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1933-07-12 1934-01-11 1934-07-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1937-07-12 1938-01-11 1938-07-13 $7700.00 Window Closed / Lapsed

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