US2527136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid mixing apparatus
Assignee: AT&T Inc
•
Filing: 1946-08-16
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Granted: 1950-10-24
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Expires: 1966-08-16
Abstract
No abstract record available.
Inventors
- 👤 Walter W Kagi
- 👤 Alfred W Laird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:00
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/001; B; B01; B01F; B01F35/00; B01F35/80; B01F35/83; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2531; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/87917
Claims Analysis
Total Claims: 0
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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) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |