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Patent US2262169A successfully refreshed from Google Patents.
US2262169A
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Valve stem
Assignee: Dill Manufacturing Co
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Filing: 1936-08-07
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Granted: 1941-11-11
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Expires: 1956-08-07
Abstract
No abstract record available.
Inventors
- 👤 John C Crowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:03
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; F16K15/02; F16K15/04; F16K15/044; F16K27/00; F16K27/02; Y; Y10; Y10S; Y10S152/00; Y10S152/07; Y10T; Y10T137/00; Y10T137/3584; Y10T137/374; Y10T137/3755; Y10T137/3771; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/7929
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) | 1944-11-10 | 1945-05-12 | 1945-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-11-10 | 1949-05-12 | 1949-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-11-10 | 1953-05-12 | 1953-11-11 | $7700.00 | Window Closed / Lapsed |