US2113762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrator transformer and rectifier
Assignee: Individual
•
Filing: 1933-04-03
•
Granted: 1938-04-12
•
Expires: 1953-04-03
Abstract
No abstract record available.
Inventors
- 👤 Stephen F James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:39
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/34; H02M3/38; H02M3/42
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) | 1941-04-11 | 1941-10-11 | 1942-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-04-11 | 1945-10-11 | 1946-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-04-11 | 1949-10-11 | 1950-04-12 | $7700.00 | Window Closed / Lapsed |