Patent US4509233A successfully refreshed from Google Patents.
US3469684A
Expired / Lapsed
US
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Lead frame package for semiconductor devices and method for making same
Assignee: Advalloy Inc
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Filing: 1967-01-26
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Granted: 1969-09-30
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Expires: 1987-01-26
Abstract
No abstract record available.
Inventors
- 👤 William L Keady
- 👤 Michael J St Clair
- 👤 James T Hazen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/003; H10; H10W; H10W70/00; H10W70/40; H10W70/479; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; H10W95/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121; Y10T428/00; Y10T428/12; Y10T428/12201; Y10T428/12208; Y10T428/15; Y10T428/24; Y10T428/24479
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3171187A
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US3239719A
Cited
GB1015909A
Cited
US3292241A
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US3381372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |