US2439248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromotor
Assignee: GREGORY MOTORS Inc
•
Filing: 1943-10-04
•
Granted: 1948-04-06
•
Expires: 1963-10-04
Abstract
No abstract record available.
Inventors
- 👤 Eli E Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:02
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US404866A
Cited
AT35885B
Cited
US1235579A
Cited
US1356875A
Cited
FR29012E
Cited
US2109953A
Cited
US2300790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |