US3401022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for horizontal zone refining of semiconductive materials
Assignee: Motorola Solutions Inc
•
Filing: 1967-03-13
•
Granted: 1968-09-10
•
Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 Carol E Marshall
- 👤 Howard W Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:19
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/14; Y; Y10; Y10S; Y10S117/00; Y10S117/90; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1076; Y10T117/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3025146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |