US2165586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet cleaning composition
Assignee: Hoover Co
•
Filing: 1936-01-13
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Granted: 1939-07-11
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Expires: 1956-01-13
Abstract
No abstract record available.
Inventors
- 👤 Clair W Studer
- 👤 Roy G Roshong
- 👤 Miller Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0031; C11D7/00; C11D7/22; C11D7/26; C11D7/265; C11D7/40; C11D7/44; D; D06; D06L; D06L1/00; D06L1/01
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) | 1942-07-10 | 1943-01-09 | 1943-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-10 | 1947-01-09 | 1947-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-10 | 1951-01-09 | 1951-07-11 | $7700.00 | Window Closed / Lapsed |