US2325308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical system
Assignee: Leeds and Northrup Co
•
Filing: 1942-04-22
•
Granted: 1943-07-27
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Expires: 1962-04-22
Abstract
No abstract record available.
Inventors
- 👤 Elwood T Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:05
CPC Classifications
G; G05; G05B; G05B1/00; G05B1/01; G05B1/02; G05B1/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-07-26 | 1947-01-25 | 1947-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-26 | 1951-01-25 | 1951-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-26 | 1955-01-25 | 1955-07-27 | $7700.00 | Window Closed / Lapsed |