Patent US3518752A successfully refreshed from Google Patents.
US3518752A
Expired / Lapsed
US
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Method of and apparatus for loading semiconductor devices
Assignee: AT&T Inc
•
Filing: 1967-07-28
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Granted: 1970-07-07
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Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 Forrest G Lentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:25
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/02; H05K13/021; Y; Y10; Y10T; Y10T29/00; Y10T29/42; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169; Y10T29/49171; Y10T29/49826; Y10T29/53; Y10T29/5313; Y10T29/53265; Y10T29/53535
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2694374A
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US2977006A
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US3221394A
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US3241222A
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US3276854A
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US3299502A
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US3386156A
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US3414962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |