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US1476560A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve-bag closure

Assignee: Individual
•
Filing: 1922-05-22
•
Granted: 1923-12-04
•
Expires: 1942-05-22
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Abstract

No abstract record available.

Inventors

  • 👤 Witmer Fred

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 22:49
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/142

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1926-12-03 1927-06-04 1927-12-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1930-12-03 1931-06-04 1931-12-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1934-12-03 1935-06-04 1935-12-04 $7700.00 Window Closed / Lapsed

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