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US1684536A Expired / Lapsed US ⏱️ 0.0 years remaining

Flotation process

Assignee: Solomon R. Guggenheim Museum
•
Filing: 1927-01-24
•
Granted: 1928-09-18
•
Expires: 1947-01-24
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Abstract

No abstract record available.

Inventors

  • 👤 Arthur H Fischer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 17:06
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/012; B03D1/008; B03D2201/00; B03D2201/02; Y; Y10; Y10S; Y10S209/00; Y10S209/901

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) 1931-09-18 1932-03-19 1932-09-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1935-09-18 1936-03-19 1936-09-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1939-09-18 1940-03-19 1940-09-18 $7700.00 Window Closed / Lapsed

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