US2594003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosion-proof dynamoelectric machine
Assignee: Westinghouse Electric Corp
•
Filing: 1949-11-04
•
Granted: 1952-04-22
•
Expires: 1969-11-04
Abstract
No abstract record available.
Inventors
- 👤 Harry D Else
- 👤 Paul J Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:13
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US722567A
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GB190712053A
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US1049011A
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US1720364A
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US1262317A
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US1532473A
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US1898126A
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US1972315A
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US2452248A
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US2454314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |