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US1979363A Expired / Lapsed US ⏱️ 0.0 years remaining

Revolving stage

Assignee: Warner Bros Entertainment Inc
•
Filing: 1932-12-27
•
Granted: 1934-11-06
•
Expires: 1952-12-27
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Abstract

No abstract record available.

Inventors

  • 👤 Berkeley Busby

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:45
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/22; E04H3/24; E04H3/26

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) 1937-11-05 1938-05-07 1938-11-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1941-11-05 1942-05-07 1942-11-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1945-11-05 1946-05-07 1946-11-06 $7700.00 Window Closed / Lapsed

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