US2332953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for indicating and adjusting the specific gravity of suspensions
Assignee: Individual
•
Filing: 1940-06-04
•
Granted: 1943-10-26
•
Expires: 1960-06-04
Abstract
No abstract record available.
Inventors
- 👤 Klaas F Tromp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
G; G01; G01N; G01N9/00; G01N9/02; G01N9/04; G01N9/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2504; Y10T137/7287; Y10T137/7339; Y10T137/7355; Y10T137/8158; Y10T137/8225; Y10T137/8275; Y10T137/8292
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) | 1946-10-25 | 1947-04-26 | 1947-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-10-25 | 1951-04-26 | 1951-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-10-25 | 1955-04-26 | 1955-10-26 | $7700.00 | Window Closed / Lapsed |