US3469127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor cooling arrangement
Assignee: Licentia Patent Verwaltungs GmbH
•
Filing: 1967-12-27
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Granted: 1969-09-23
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Expires: 1987-12-27
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Eggemann
- 👤 Erich Weghaupt
- 👤 Dietrich Lambrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:37
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2898484A
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US3034003A
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US3097317A
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US3131321A
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US3243616A
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US3320447A
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US3296470A
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US3340412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |