US3420719A
Expired / Lapsed
US
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Method of making semiconductors by laser induced diffusion
Assignee: International Business Machines Corp
•
Filing: 1965-05-27
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Granted: 1969-01-07
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Expires: 1985-05-27
Abstract
No abstract record available.
Inventors
- 👤 Horton R Potts
- 👤 Charles A Speicher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:31
CPC Classifications
H; H10; H10P; H10P34/00; H10P34/40; H10P34/42; B; B23; B23K; B23K26/00; B23K26/02; B23K26/03; B23K26/034; B23K26/06; B23K26/064; B23K26/066; B23K26/18; C; C23; C23C; C23C10/00; C23C10/04; C23C10/28; H10P32/00; H10P32/10; H10P32/14; H10P32/1408; H10P32/17; H10P32/171; H10P32/174; Y; Y10; Y10S; Y10S148/00; Y10S148/071; Y10S148/093; Y10S148/106; Y10S65/00; Y10S65/04
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |