US3470612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making multilayer circuit boards
Assignee: Texas Instruments Inc
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Filing: 1966-11-14
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Granted: 1969-10-07
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 John D Helms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:58
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/06; H05K3/00; H05K3/10; H05K3/103; H05K3/40; H05K3/4038; H05K3/4046; H05K1/00; H05K1/02; H05K1/0286; H05K1/0287; H05K1/0289; H05K1/0296; H05K1/0298; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/096; H05K2201/09609; H05K2201/09818; H05K2201/09945; H05K2201/10; H05K2201/10227; H05K2201/10287; H05K2201/10295; H05K2203/00; H05K2203/01; H05K2203/0195; H05K2203/08; H05K2203/085; H05K2203/17; H05K2203/175; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49004
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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |