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US205238A Expired / Lapsed US ⏱️ 0.0 years remaining

Improvement in sheet-metal tubing

Assignee: —
•
Filing: —
•
Granted: 1878-06-25
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Expires: 1895-06-25
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Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 16:20
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/2676; B29; B29C; B29C53/00; B29C53/36

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) 1881-06-24 1881-12-24 1882-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1885-06-24 1885-12-24 1886-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1889-06-24 1889-12-24 1890-06-25 $7700.00 Window Closed / Lapsed

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