US2558816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid mixing device
Assignee: RTX Corp
•
Filing: 1947-08-16
•
Granted: 1951-07-03
•
Expires: 1967-08-16
Abstract
No abstract record available.
Inventors
- 👤 Bruynes Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:54
CPC Classifications
G; G01; G01M; G01M9/00; G01M9/02; G01M9/04; B; B64; B64C; B64C23/00; B64C23/06; Y; Y02; Y02T; Y02T50/00; Y02T50/10; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |