Patent US1640634A successfully refreshed from Google Patents.
US1640634A
Expired / Lapsed
US
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Internal-combustion engine
Assignee: Studebaker Corp
•
Filing: 1927-03-18
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Granted: 1927-08-30
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Expires: 1947-03-18
Abstract
No abstract record available.
Inventors
- 👤 Karl M Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:22
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/04; F16F15/043; F01; F01L; F01L1/00; F01L1/02; F01L1/04; F01L1/047; F01L2001/0478; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2183; Y10T74/2184
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) | 1930-08-29 | 1931-02-28 | 1931-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-29 | 1935-02-28 | 1935-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-29 | 1939-02-28 | 1939-08-30 | $7700.00 | Window Closed / Lapsed |