US2958928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making printed wiring circuits
Assignee: AT&T Inc
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Filing: 1955-12-14
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Granted: 1960-11-08
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Expires: 1975-12-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Lewis A Bain
- 👤 Robert A Geshner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:55
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/061; H05K3/064; H05K3/22; H05K3/24; H05K3/243; H05K1/00; H05K1/02; H05K1/11; H05K1/117; H05K2203/00; H05K2203/01; H05K2203/0191; H05K2203/05; H05K2203/0562; H05K2203/0582; H05K2203/0588; H05K2203/07; H05K2203/0703; H05K2203/0723; H05K3/10; H05K3/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |