US2819479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scrubbing machine with shield and support attachment therefor
Assignee: Hoover Co
•
Filing: 1954-02-09
•
Granted: 1958-01-14
•
Expires: 1974-02-09
Abstract
No abstract record available.
Inventors
- 👤 Otis B Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:10
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4061; A47J; A47J27/00; A47J27/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1090129A
Cited
DE440050C
Cited
US928456A
Cited
US1393747A
Cited
US1707575A
Cited
US1667082A
Cited
US1954066A
Cited
DE640875C
Cited
US2174250A
Cited
US2250177A
Cited
US2306470A
Cited
US2307519A
Cited
GB635922A
Cited
US2626412A
Cited
US2574440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |