US3537764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing for the rotor in an electric motor
Assignee: Kvaerner Brug AS
•
Filing: 1969-02-18
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Granted: 1970-11-03
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Expires: 1989-02-18
Abstract
No abstract record available.
Inventors
- 👤 Johannes Anders Krosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:56
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/05; F04D29/056; F04D13/00; F04D13/02; F04D13/06; F04D13/0646; H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1677; H02K7/00; H02K7/08; H02K7/086; H02K7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US690024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |