Patent US2623535A successfully refreshed from Google Patents.
US2623535A
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US
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Valve control mechanism
Assignee: Individual
•
Filing: 1944-12-06
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Granted: 1952-12-30
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Expires: 1964-12-06
Abstract
No abstract record available.
Inventors
- 👤 Burton D Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:06
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/161; F; F16; F16K; F16K31/00; F16K31/12; F16K31/126; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2572; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US957347A
Cited
US2154477A
Cited
US2126707A
Cited
US2152084A
Cited
US2326998A
Cited
US2365752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |