US3476592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing improved epitaxial films
Assignee: International Business Machines Corp
•
Filing: 1966-01-14
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Granted: 1969-11-04
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Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 Melvin Berkenblit
- 👤 Arnold Reisman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:45
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/40; H10D62/405; H10P; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/2907; H10P14/2911; H10P14/2926; H10P14/34; H10P14/3402; H10P14/3414; H10P14/3421; Y; Y10; Y10S; Y10S148/00; Y10S148/051; Y10S148/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3325314A
Cited
US3379584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |