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US2865083A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of clearing electrical capacitors

Assignee: AT&T Inc
•
Filing: 1951-05-03
•
Granted: 1958-12-23
•
Expires: 1971-05-03
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Abstract

No abstract record available.

Inventors

  • 👤 Joseph A Kater
  • 👤 Jr John R Weeks

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 19:25
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/06; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1307341A Cited
US1341336A Cited
US1594124A Cited
US1536944A Cited
US2095807A Cited
US2181695A Cited
US2171127A Cited
US2387759A Cited
US2438721A Cited
US2395442A Cited
CH246115A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-12-22 1962-06-23 1962-12-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-12-22 1966-06-23 1966-12-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-12-22 1970-06-23 1970-12-23 $7700.00 Window Closed / Lapsed

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