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US1195256A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for maintaining the transparency of transparent mediums

Assignee: —
•
Filing: —
•
Granted: 1916-08-22
•
Expires: 1933-08-22
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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 04:58
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02

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) 1919-08-22 1920-02-21 1920-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1923-08-22 1924-02-21 1924-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1927-08-22 1928-02-21 1928-08-22 $7700.00 Window Closed / Lapsed

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