US2715685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamo-electric machine and reciprocable power unit therefor
Assignee: Individual
•
Filing: 1953-03-23
•
Granted: 1955-08-16
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:04
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/04; H; H02; H02K; H02K7/00; H02K7/06; H02K7/075; H02K7/08; H02K7/14; H02K7/18; H02K7/1807; H02K7/1815; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US438187A
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US918194A
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US937009A
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US824922A
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US999220A
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US1736974A
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US1493601A
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US1751958A
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US1738104A
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US2346152A
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US2506736A
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DE848589C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |