US2436788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for curve distortion of alternating currents
Assignee: Individual
•
Filing: 1942-04-21
•
Granted: 1948-03-02
•
Expires: 1962-04-21
Abstract
No abstract record available.
Inventors
- 👤 Pierre Bricout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:58
CPC Classifications
H; H05; H05B; H05B39/00; G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06; H01; H01F; H01F38/00; H01F38/02; H01F38/06; H02; H02J; H02J3/00; H02J3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308041A
Cited
US1094778A
Cited
US1180800A
Cited
US1947484A
Cited
US2006806A
Cited
US1988008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |