US3538598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for assembly of ball bearing electric motors
Assignee: Emerson Electric Co
•
Filing: 1968-09-23
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Granted: 1970-11-10
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Expires: 1988-09-23
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Wightman
- 👤 Michael J Lacy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:46
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/173; H02K5/1732; H02K15/00; H02K15/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |