Patent US2707263A successfully refreshed from Google Patents.
US2707263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage and current regulator
Assignee: D W ONAN AND SONS Inc
•
Filing: 1952-04-07
•
Granted: 1955-04-26
•
Expires: 1972-04-07
Abstract
No abstract record available.
Inventors
- 👤 Harry E Jorgenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:07
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1077792A
Cited
US1341492A
Cited
US1789145A
Cited
US1789146A
Cited
US2095674A
Cited
US1870064A
Cited
US2076962A
Cited
US2075105A
Cited
US2066919A
Cited
GB472472A
Cited
US2282344A
Cited
US2282651A
Cited
US2427809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |