US2832032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the regulation of the voltage across a load circuit supplied with direct current
Assignee: Siemens Mobility Ltd
•
Filing: 1954-03-03
•
Granted: 1958-04-22
•
Expires: 1974-03-03
Abstract
No abstract record available.
Inventors
- 👤 Walker Alec Hervey Bennett
- 👤 Raymond G Martin
- 👤 Kenneth G King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:40
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |