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US628643A Expired / Lapsed US ⏱️ 0.0 years remaining

Pipe-joining apparatus.

Assignee: CHARLES A BERTSCH
•
Filing: 1898-07-14
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Granted: 1899-07-11
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Expires: 1918-07-14
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Abstract

No abstract record available.

Inventors

  • 👤 John Wm Abrahams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 17:54
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B21C37/0815; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/4994

Claims Analysis

Total Claims: 0
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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) 1902-07-11 1903-01-10 1903-07-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1906-07-11 1907-01-10 1907-07-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1910-07-11 1911-01-10 1911-07-12 $7700.00 Window Closed / Lapsed

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