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Patent US2264136A successfully refreshed from Google Patents.
US2264136A
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Compressor valve
Assignee: CHICAGO SEAL Co
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Filing: 1940-11-27
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Granted: 1941-11-25
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Expires: 1960-11-27
Abstract
No abstract record available.
Inventors
- 👤 Arvid E Karlberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:07
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/1013; F16; F16K; F16K15/00; F16K15/02; F16K15/025; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/792; Y10T137/7922
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) | 1944-11-24 | 1945-05-26 | 1945-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-11-24 | 1949-05-26 | 1949-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-11-24 | 1953-05-26 | 1953-11-25 | $7700.00 | Window Closed / Lapsed |