Patent US267473A successfully refreshed from Google Patents.
Patent US3493431A successfully refreshed from Google Patents.
US3493431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor-liquid-solid crystal growth technique
Assignee: AT&T Inc
•
Filing: 1966-11-25
•
Granted: 1970-02-03
•
Expires: 1986-11-25
Abstract
No abstract record available.
Inventors
- 👤 Richard S Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:53
CPC Classifications
C; C30; C30B; C30B11/00; C30B11/04; C30B11/08; C30B11/12; Y; Y10; Y10S; Y10S148/00; Y10S148/107; Y10S148/115; Y10S148/17
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3346414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |