Patent US2409312A successfully refreshed from Google Patents.
US2409312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current regulator
Assignee: Cutler Hammer Inc
•
Filing: 1945-02-05
•
Granted: 1946-10-15
•
Expires: 1965-02-05
Abstract
No abstract record available.
Inventors
- 👤 James B Reeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:02
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1949-10-14 | 1950-04-15 | 1950-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-10-14 | 1954-04-15 | 1954-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-10-14 | 1958-04-15 | 1958-10-15 | $7700.00 | Window Closed / Lapsed |