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US1515792A Expired / Lapsed US ⏱️ 0.0 years remaining

Unwoven fabric and process for making the same

Assignee: Respro Inc
•
Filing: 1919-03-11
•
Granted: 1924-11-18
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Expires: 1939-03-11
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Abstract

No abstract record available.

Inventors

  • 👤 Roland B Respess

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 17:24
CPC Classifications
D; D06; D06N; D06N3/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24132; Y10T428/31504; Y10T428/31826; Y10T428/3183

Claims Analysis

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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) 1927-11-18 1928-05-19 1928-11-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1931-11-18 1932-05-19 1932-11-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1935-11-18 1936-05-19 1936-11-18 $7700.00 Window Closed / Lapsed

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