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US2014493A Expired / Lapsed US ⏱️ 0.0 years remaining

Hypodermic syringe plunger retarding means

Assignee: Individual
•
Filing: 1931-12-15
•
Granted: 1935-09-17
•
Expires: 1951-12-15
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Abstract

No abstract record available.

Inventors

  • 👤 Eisele Logan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 22:38
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31501; A61M2005/3151; A61M5/31505; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3444

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) 1938-09-16 1939-03-18 1939-09-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1942-09-16 1943-03-18 1943-09-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1946-09-16 1947-03-18 1947-09-17 $7700.00 Window Closed / Lapsed

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