US1821959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bathtub
Assignee: Individual
•
Filing: 1929-10-23
•
Granted: 1931-09-08
•
Expires: 1949-10-23
Abstract
No abstract record available.
Inventors
- 👤 Bloch Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:43
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/042; F; F16; F16K; F16K19/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86879; Y10T137/86895; Y10T137/87249; Y10T137/87265; Y10T137/87281; Y10T137/87571; Y10T137/87676; Y10T137/87684
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) | 1934-09-07 | 1935-03-09 | 1935-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-07 | 1939-03-09 | 1939-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-07 | 1943-03-09 | 1943-09-08 | $7700.00 | Window Closed / Lapsed |