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US1947639A Expired / Lapsed US ⏱️ 0.0 years remaining

Bolt cap

Assignee: STANDARD SANITARY Manufacturing CO
•
Filing: 1932-04-21
•
Granted: 1934-02-20
•
Expires: 1952-04-21
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Abstract

No abstract record available.

Inventors

  • 👤 Brain George

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 00:25
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/13; E03D11/16

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) 1937-02-19 1937-08-21 1938-02-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1941-02-19 1941-08-21 1942-02-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1945-02-19 1945-08-21 1946-02-20 $7700.00 Window Closed / Lapsed

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