Patent US2228393A successfully refreshed from Google Patents.
US2228393A
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US
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Throttle valve control apparatus
Assignee: Individual
•
Filing: 1938-01-27
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Granted: 1941-01-14
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Expires: 1958-01-27
Abstract
No abstract record available.
Inventors
- 👤 Morrell Q Leaming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:49
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/0076; B60Q1/0082; F; F02; F02D; F02D11/00; F02D11/02; F02D11/06; F02D11/10; F02D2011/101; F02D2011/103; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6881; Y10T137/6884; Y10T74/00; Y10T74/20; Y10T74/20528; Y10T74/20534; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/20864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-01-14 | 1944-07-15 | 1945-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-14 | 1948-07-15 | 1949-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-14 | 1952-07-15 | 1953-01-14 | $7700.00 | Window Closed / Lapsed |