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Assignee: —
•
Filing: —
•
Granted: 1881-10-25
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Expires: 1898-10-25
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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 2026-10-23 04:41
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/02; E02D7/06; E02D7/10

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) 1884-10-24 1885-04-25 1885-10-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1888-10-24 1889-04-25 1889-10-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1892-10-24 1893-04-25 1893-10-25 $7700.00 Window Closed / Lapsed

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