Patent US3422341A successfully refreshed from Google Patents.
US3422341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifying apparatus for producing constant d.c. output voltage
Assignee: Individual
•
Filing: 1966-06-14
•
Granted: 1969-01-14
•
Expires: 1986-06-14
Abstract
No abstract record available.
Inventors
- 👤 Toshio Kurimura
- 👤 Kazuomi Yamamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:14
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/33; G05F1/335; G05F1/46; G05F1/56; G05F1/565; G05F1/569; G05F1/573; H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |