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US2038085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Studebaker Corp
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Filing: 1932-12-10
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Granted: 1936-04-21
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Expires: 1952-12-10
Abstract
No abstract record available.
Inventors
- 👤 Delmar G Roos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:18
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/22; F16F15/24; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02B2075/1804; F02B2075/184
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) | 1939-04-21 | 1939-10-21 | 1940-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-21 | 1943-10-21 | 1944-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-21 | 1947-10-21 | 1948-04-21 | $7700.00 | Window Closed / Lapsed |