US3070467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of gallium arsenide
Assignee: AT&T Inc
•
Filing: 1960-03-30
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Granted: 1962-12-25
•
Expires: 1980-03-30
Abstract
No abstract record available.
Inventors
- 👤 Calvin S Fuller
- 👤 James M Whelan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:55
CPC Classifications
H; H10; H10P; H10P95/00; H10P95/90; H10P95/904; Y; Y10; Y10S; Y10S148/00; Y10S148/022; Y10S148/04; Y10S148/056; Y10S148/065; Y10S438/00; Y10S438/914; Y10S438/918; Y10S438/971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |