US3468638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing crystalline rods from semiconductor compounds
Assignee: Siemens AG
•
Filing: 1966-09-27
•
Granted: 1969-09-23
•
Expires: 1986-09-27
Abstract
No abstract record available.
Inventors
- 👤 Bruno Reiss
- 👤 Theodor Renner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:33
CPC Classifications
C; C30; C30B; C30B11/00; C30B11/04; C30B11/06; C30B11/065; C01; C01B; C01B19/00; C01B19/007; C01B25/00; C01B25/06; C01B25/08; C01B25/088; C30B11/002; C01P; C01P2004/00; C01P2004/10; C01P2004/12; Y; Y10; Y10S; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1189548A
Cited
US1897589A
Cited
US2036496A
Cited
US2880497A
Cited
US3209436A
Cited
US3318669A
Cited
US3152373A
Cited
US3139599A
Cited
GB997363A
Cited
US3333625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |