US2904709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motors
Assignee: Howard Industries Inc
•
Filing: 1956-07-11
•
Granted: 1959-09-15
•
Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 Max E Lautner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:34
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1677
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US618131A
Cited
US1563945A
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US1853160A
Cited
US1919522A
Cited
US2067155A
Cited
US2193713A
Cited
DE908508C
Cited
US2685658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |