US1654186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction sweeper
Assignee: Hoover Co
•
Filing: 1921-06-06
•
Granted: 1927-12-27
•
Expires: 1941-06-06
Abstract
No abstract record available.
Inventors
- 👤 Marvin E Nulsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:28
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/30; Y; Y10; Y10S; Y10S15/00; Y10S15/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-12-26 | 1931-06-27 | 1931-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-12-26 | 1935-06-27 | 1935-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-12-26 | 1939-06-27 | 1939-12-27 | $7700.00 | Window Closed / Lapsed |