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US2638898A Expired / Lapsed US ⏱️ 0.0 years remaining

Stoma receiver

Assignee: Individual
•
Filing: 1950-07-07
•
Granted: 1953-05-19
•
Expires: 1970-07-07
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Abstract

No abstract record available.

Inventors

  • 👤 Perry Murle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 17:23
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/445

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1656328A Cited
US2129054A Cited
US2496175A Cited
US2504872A Cited
US2544579A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-05-18 1956-11-17 1957-05-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-05-18 1960-11-17 1961-05-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-05-18 1964-11-17 1965-05-19 $7700.00 Window Closed / Lapsed

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