US2888192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner motor-fan unit
Assignee: American Machine and Metals Inc
•
Filing: 1956-12-27
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Granted: 1959-05-26
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Expires: 1976-12-27
Abstract
No abstract record available.
Inventors
- 👤 James D Cole
- 👤 Duckwitz Fred
- 👤 Albert L Sebok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:23
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F16K15/16; Y; Y10; Y10S; Y10S55/00; Y10S55/03; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7843; Y10T137/7879; Y10T137/7888; Y10T137/7891
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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |