US3491720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epitaxial deposition reactor
Assignee: Monsanto Co
•
Filing: 1965-07-29
•
Granted: 1970-01-27
•
Expires: 1985-07-29
Abstract
No abstract record available.
Inventors
- 👤 Darrel M Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:05
CPC Classifications
C; C30; C30B; C30B25/00; C30B25/02; C30B25/08; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB488131A
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US2413987A
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US2580976A
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US3086882A
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US2996412A
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US3051164A
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US3131098A
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US3206322A
Cited
FR1291661A
Cited
US3197328A
Cited
US3145208A
Cited
US3272199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |