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US3075263A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for melting metals

Assignee: Dow Chemical Co
•
Filing: 1958-05-21
•
Granted: 1963-01-29
•
Expires: 1978-05-21
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Abstract

No abstract record available.

Inventors

  • 👤 Paul R Juckniess
  • 👤 George B Cobel
  • 👤 Douglas S Chisholm

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:19
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; B; B22; B22D; B22D7/00; B22D7/005; C22B59/00; C22B60/00; C22B60/02; C22B60/0291; C22B9/00; C22B9/006; Y; Y10; Y10S; Y10S266/00; Y10S266/905

Claims Analysis

Total Claims: 0
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-01-28 1966-07-30 1967-01-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-01-28 1970-07-30 1971-01-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-01-28 1974-07-30 1975-01-29 $7700.00 Window Closed / Lapsed

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