US3438385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow blending control system
Assignee: Honeywell Inc
•
Filing: 1966-01-19
•
Granted: 1969-04-15
•
Expires: 1986-01-19
Abstract
No abstract record available.
Inventors
- 👤 Iwao Nogami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:53
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/80; B01F35/83; G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2529
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3089643A
Cited
US3095887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |