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US2159285A Expired / Lapsed US ⏱️ 0.0 years remaining

Form separator mechanism

Assignee: Hobbs Sales & Service Station
•
Filing: 1937-09-04
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Granted: 1939-05-23
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Expires: 1957-09-04
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Abstract

No abstract record available.

Inventors

  • 👤 Minkow Robert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 06:10
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/006; B31B2105/00; B31B2105/002; B31B2105/0024; B31B2120/00; B31B2120/50

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1942-05-22 1942-11-21 1943-05-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1946-05-22 1946-11-21 1947-05-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1950-05-22 1950-11-21 1951-05-23 $7700.00 Window Closed / Lapsed

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