Patent US3450534A successfully refreshed from Google Patents.
US3450534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tin-lead-tin layer arrangement to improve adherence of photoresist and substrate
Assignee: General Electric Co
•
Filing: 1966-04-01
•
Granted: 1969-06-17
•
Expires: 1986-04-01
Abstract
No abstract record available.
Inventors
- 👤 Donald Mackellar
- 👤 Reuben E Joynson Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:43
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H; H10; H10N; H10N60/00; H10N60/01; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/80; Y10S505/815; Y10S505/818; Y10S505/819; Y10S505/82; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12701; Y10T428/12708; Y10T428/12771; Y10T428/12806; Y10T428/12819
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3125654A
Cited
US3366519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |