US2930069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine driven floor tool
Assignee: Electrolux Corp
•
Filing: 1957-06-28
•
Granted: 1960-03-29
•
Expires: 1977-06-28
Abstract
No abstract record available.
Inventors
- 👤 John J Kowalewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0405; A47L9/0416; A47L11/00; A47L11/02; A47L11/20; A47L11/204; A47L11/32; A47L11/325; A47L11/40; A47L11/4036; A47L11/4041; A47L11/4044; A47L11/4063; A47L11/4069; A47L11/4094; A47L9/0427; A47L9/0433
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323925A
Cited
US983988A
Cited
US2107571A
Cited
US2178003A
Cited
US2100089A
Cited
US2203650A
Cited
US2659925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |