US2835825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurrent amplifiers
Assignee: Electronics Corp of America
•
Filing: 1956-04-05
•
Granted: 1958-05-20
•
Expires: 1976-04-05
Abstract
No abstract record available.
Inventors
- 👤 Bradford T Joyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:06
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/12; A; A62; A62C; A62C3/00; A62C3/07; A62C3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1653694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |