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US3064317A Expired / Lapsed US ⏱️ 0.0 years remaining

Double wall construction

Assignee: North American Aviation Corp
•
Filing: 1959-05-12
•
Granted: 1962-11-20
•
Expires: 1979-05-12
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Abstract

No abstract record available.

Inventors

  • 👤 Franklin A Dobson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 18:44
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/38; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1605513A Cited
US1972005A Cited
US2101270A Cited
US2104144A Cited
US2420292A Cited
GB577154A Cited
US2440306A Cited
US2451146A Cited
US2817484A Cited
US2814410A Cited
US2714516A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-11-19 1966-05-21 1966-11-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-11-19 1970-05-21 1970-11-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-11-19 1974-05-21 1974-11-20 $7700.00 Window Closed / Lapsed

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