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US2700744A Expired / Lapsed US ⏱️ 0.0 years remaining

Permanent magnet chuck

Assignee: Individual
•
Filing: 1951-05-24
•
Granted: 1955-01-25
•
Expires: 1971-05-24
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Abstract

No abstract record available.

Inventors

  • 👤 Frank L Simmons

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 08:32
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/15; B23Q3/154; B23Q3/1546

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1003900A Cited
US1081462A Cited
US1451268A Cited
US2360928A Cited
US2359293A Cited
US2390743A Cited
GB593939A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1958-01-24 1958-07-26 1959-01-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1962-01-24 1962-07-26 1963-01-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1966-01-24 1966-07-26 1967-01-25 $7700.00 Window Closed / Lapsed

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