US2411684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine assembly
Assignee: EASTERN AIR DEVICES Inc
•
Filing: 1943-08-31
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Granted: 1946-11-26
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Expires: 1963-08-31
Abstract
No abstract record available.
Inventors
- 👤 Hugh G Hamilton
- 👤 Leonard C Pratt
- 👤 Skrobisch Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:39
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/16
Claims Analysis
Total Claims: 0
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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) | 1949-11-25 | 1950-05-27 | 1950-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-25 | 1954-05-27 | 1954-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-25 | 1958-05-27 | 1958-11-26 | $7700.00 | Window Closed / Lapsed |