US2420554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure regulation and control apparatus
Assignee: International Motors LLC
•
Filing: 1943-05-12
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Granted: 1947-05-13
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Expires: 1963-05-12
Abstract
No abstract record available.
Inventors
- 👤 Carl W Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:03
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/025; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50536; F15B2211/50554; F15B2211/515; F15B2211/5151; F15B2211/5157; F15B2211/52; F15B2211/528; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/7928; Y10T137/8593; Y10T137/86928; Y10T137/87169; Y10T137/87177
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) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |