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US3307704A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: Ajem Laboratories Inc
•
Filing: 1964-05-01
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Granted: 1967-03-07
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Expires: 1984-05-01
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Abstract

No abstract record available.

Inventors

  • 👤 Pashaian Sark
  • 👤 James M Stewart

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 06:21
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/04; B01D33/056

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2619232A Cited
US3077990A Cited
US3225928A Cited
US3197030A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-03-06 1970-09-05 1971-03-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-03-06 1974-09-05 1975-03-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-03-06 1978-09-05 1979-03-07 $7700.00 Window Closed / Lapsed

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