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US3482896A Expired / Lapsed US ⏱️ 0.0 years remaining

Optical viewing device

Assignee: Individual
•
Filing: 1968-03-01
•
Granted: 1969-12-09
•
Expires: 1988-03-01
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Abstract

No abstract record available.

Inventors

  • 👤 Arda Bogosian

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 10:25
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/08

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2454577A Cited
US3011392A Cited
US3318187A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-12-08 1973-06-09 1973-12-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-12-08 1977-06-09 1977-12-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-12-08 1981-06-09 1981-12-09 $7700.00 Window Closed / Lapsed

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