Patent US4794263A successfully refreshed from Google Patents.
Patent US2935183A successfully refreshed from Google Patents.
Patent US2933672A successfully refreshed from Google Patents.
US2933672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic amplifier
Assignee: GEN ELECTRONIC LAB Inc
•
Filing: 1955-03-28
•
Granted: 1960-04-19
•
Expires: 1975-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas F Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:16
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734165A
Cited
US2126790A
Cited
US2503039A
Cited
US2786177A
Cited
US2731521A
Cited
US2800626A
Cited
US2754473A
Cited
US2770770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |