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US2377689A Expired / Lapsed US ⏱️ 0.0 years remaining

Dielectric composition

Assignee: Corning Glass Works
•
Filing: 1943-05-17
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Granted: 1945-06-05
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Expires: 1963-05-17
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Abstract

No abstract record available.

Inventors

  • 👤 Hyde James Franklin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:31
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; H01B3/465

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) 1948-06-04 1948-12-04 1949-06-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1952-06-04 1952-12-04 1953-06-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1956-06-04 1956-12-04 1957-06-05 $7700.00 Window Closed / Lapsed

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