US2828428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor-ventilated generators
Assignee: Westinghouse Electric Corp
•
Filing: 1955-02-17
•
Granted: 1958-03-25
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Baudry Rene Andre
- 👤 Paul R Heller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:23
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/24; H02K9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1706810A
Cited
US2052831A
Cited
GB443017A
Cited
US2683227A
Cited
US2695368A
Cited
FR1084689A
Cited
US2742582A
Cited
US2742583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |