US2664674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid regulator valve
Assignee: Rockwell Manufacturing Co
•
Filing: 1948-04-27
•
Granted: 1954-01-05
•
Expires: 1968-04-27
Abstract
No abstract record available.
Inventors
- 👤 Niesemann Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:13
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2607; Y10T137/261; Y10T137/7287; Y10T137/7498; Y10T137/7501; Y10T137/7504; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/782; Y10T137/7821; Y10T137/7832
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |