Patent US2959758A successfully refreshed from Google Patents.
US2959758A
Expired / Lapsed
US
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Printed circuit board
Assignee: AT&T Inc
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Filing: 1955-12-29
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Granted: 1960-11-08
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Robert A Geshner
- 👤 Lawrence J Kehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:08
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/11; H05K1/117; H05K3/00; H05K3/10; H05K3/107; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0376; H05K2201/0382; H05K2201/09; H05K2201/09009; H05K2201/09036; H05K2201/09145; H05K2201/09154; H05K2201/09209; H05K2201/09654; H05K2201/098; H05K2201/10; H05K2201/10613; H05K2201/10742; H05K2201/1075; H05K2201/10863; H05K2203/00; H05K2203/02; H05K2203/0278; Y; Y10; Y10S; Y10S439/00; Y10S439/951
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734150A
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US2288735A
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US2376854A
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US2755452A
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US2748364A
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US2711523A
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US2716268A
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US2757443A
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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) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |