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US3221922A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: Individual
•
Filing: 1961-09-11
•
Granted: 1965-12-07
•
Expires: 1981-09-11
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Abstract

No abstract record available.

Inventors

  • 👤 Clarence J Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 21:03
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE612413C Cited
US2196181A Cited
US2311001A Cited
US2298311A Cited
US2286508A Cited
US2355108A Cited
US2337452A Cited
US2362846A Cited
US2348750A Cited
US2388300A Cited
US3139211A Cited
FR1256871A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-12-06 1969-06-07 1969-12-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-12-06 1973-06-07 1973-12-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-12-06 1977-06-07 1977-12-07 $7700.00 Window Closed / Lapsed

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