US2567410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiphase generator
Assignee: Stromberg Carlson Corp
•
Filing: 1949-01-11
•
Granted: 1951-09-11
•
Expires: 1969-01-11
Abstract
No abstract record available.
Inventors
- 👤 Robert B Trousdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:05
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/15; H03K5/15013; H03B; H03B27/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2166688A
Cited
GB510881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |