US2456967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor
Assignee: VARIETY DEV AND ENGINEERING CO
•
Filing: 1946-12-17
•
Granted: 1948-12-21
•
Expires: 1966-12-17
Abstract
No abstract record available.
Inventors
- 👤 Carlos B Livers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:32
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1169779A
Cited
US1540038A
Cited
US1778678A
Cited
US1793834A
Cited
US2233623A
Cited
US2323945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |