US2157112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cleansing and treating
Assignee: Individual
•
Filing: 1931-09-16
•
Granted: 1939-05-09
•
Expires: 1951-09-16
Abstract
No abstract record available.
Inventors
- 👤 Douglas E Bonner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:32
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/02; A47L15/06; Y; Y10; Y10S; Y10S220/00; Y10S220/28; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/4456; Y10T137/5762; Y10T137/5835; Y10T137/6851; Y10T137/7039; Y10T137/7287; Y10T137/7306; Y10T137/9247
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) | 1942-05-08 | 1942-11-07 | 1943-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-08 | 1946-11-07 | 1947-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-08 | 1950-11-07 | 1951-05-09 | $7700.00 | Window Closed / Lapsed |