US1672436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically-operating scavenging valve for two-stroke cycle internal-combustion engines applicable also to compressors and the like
Assignee: Atlas Copco AB
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Filing: 1926-06-24
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Granted: 1928-06-05
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Expires: 1946-06-24
Abstract
No abstract record available.
Inventors
- 👤 Thege Edvin Ossian Parcival
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:43
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10242; F02M35/10262; F02B; F02B27/00; F02B27/003; F02M35/10006; F02M35/10078; F02M35/10085; F02M35/1015; F02M35/1019; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/16; F16K15/162; F16K2200/00; F16K2200/20; F16K2200/203; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7859; Y10T137/7879; Y10T137/7888; Y10T137/7891; Y10T137/7892
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) | 1931-06-05 | 1931-12-05 | 1932-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-06-05 | 1935-12-05 | 1936-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-06-05 | 1939-12-05 | 1940-06-05 | $7700.00 | Window Closed / Lapsed |