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Assignee: WILLIAM H BERKELBACH
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Filing: 1904-07-01
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Granted: 1904-11-29
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Expires: 1924-07-01
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Abstract

No abstract record available.

Inventors

  • 👤 Henry C George

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 20:06
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; Y; Y10; Y10S; Y10S292/00; Y10S292/17; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876; Y10T292/0878

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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) 1907-11-29 1908-05-30 1908-11-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1911-11-29 1912-05-30 1912-11-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1915-11-29 1916-05-30 1916-11-29 $7700.00 Window Closed / Lapsed

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