US3527969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soundproofed housing for electric motors
Assignee: Ebm Papst St Georgen GmbH and Co KG
•
Filing: 1968-10-28
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Granted: 1970-09-08
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Expires: 1988-10-28
Abstract
No abstract record available.
Inventors
- 👤 Hermann Papst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:14
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16; H02K1/00; H02K1/06; H02K1/22; H02K1/27; H02K1/2786; H02K1/2787; H02K1/2789; H02K1/2791; H02K19/00; H02K19/02; H02K19/04; H02K19/08; H02K5/00; H02K5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1476776A
Cited
US1688891A
Cited
US2272985A
Cited
US2281858A
Cited
US2874008A
Cited
US2886721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |