US1995559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling tank
Assignee: Individual
•
Filing: 1932-11-29
•
Granted: 1935-03-26
•
Expires: 1952-11-29
Abstract
No abstract record available.
Inventors
- 👤 Andrews Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:29
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0018; B01D21/0024; B01D21/02; B01D21/24; B01D21/245; B01D21/2472; B01D21/30; B01D21/34; B01D21/302
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) | 1938-03-25 | 1938-09-24 | 1939-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-25 | 1942-09-24 | 1943-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-25 | 1946-09-24 | 1947-03-26 | $7700.00 | Window Closed / Lapsed |