US2672880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow control apparatus
Assignee: Honeywell Inc
•
Filing: 1951-08-30
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Granted: 1954-03-23
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Expires: 1971-08-30
Abstract
No abstract record available.
Inventors
- 👤 Harry M Hermanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/266; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7297; Y10T137/73; Y10T137/7303; Y10T137/7306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563280A
Cited
US2557438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |