US2060168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: REXAIR Corp
•
Filing: 1934-05-04
•
Granted: 1936-11-10
•
Expires: 1954-05-04
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:20
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/16; A47L9/1658; A47L9/1666; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/0081; A47L9/12; A47L9/122; A47L9/14; A47L9/1427; A47L9/1675; A47L9/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1939-11-10 | 1940-05-11 | 1940-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-10 | 1944-05-11 | 1944-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-10 | 1948-05-11 | 1948-11-10 | $7700.00 | Window Closed / Lapsed |