US1815225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaner
Assignee: Hoover Co
•
Filing: 1927-11-11
•
Granted: 1931-07-21
•
Expires: 1947-11-11
Abstract
No abstract record available.
Inventors
- 👤 Harry B White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:51
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4041; A47L11/02; A47L11/20; A47L11/204; A47L11/4077; A47L11/4094; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/30
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) | 1934-07-20 | 1935-01-19 | 1935-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-07-20 | 1939-01-19 | 1939-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-07-20 | 1943-01-19 | 1943-07-21 | $7700.00 | Window Closed / Lapsed |