US3546775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making multi-layer circuit
Assignee: Lockheed Martin Corp
•
Filing: 1968-03-04
•
Granted: 1970-12-15
•
Expires: 1988-03-04
Abstract
No abstract record available.
Inventors
- 👤 Harold Lalmond
- 👤 Lewis B Goody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:46
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/46; H05K3/4644; H05K1/00; H05K1/02; H05K1/11; H05K1/118; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09109; H05K2201/09145; H05K2201/0919; H05K2201/09209; H05K2201/095; H05K2201/09509; H05K2203/00; H05K2203/06; H05K2203/063; H05K2203/10; H05K2203/107; H05K3/10; H05K3/18; H05K3/181; H05K3/4611; H05K3/4688; H05K3/4691; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49126; Y10T29/49155
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |