Patent US2598433A successfully refreshed from Google Patents.
US2598433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shifting network
Assignee: General Electric Co
•
Filing: 1949-04-29
•
Granted: 1952-05-27
•
Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 Albert H Mittag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:22
CPC Classifications
H; H02; H02P; H02P13/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1755060A
Cited
US1921786A
Cited
US1926275A
Cited
US1965439A
Cited
US2042234A
Cited
US2189896A
Cited
US2442214A
Cited
US2408461A
Cited
US2444715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |