US1742971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: General Electric Co
•
Filing: 1928-12-04
•
Granted: 1930-01-07
•
Expires: 1948-12-04
Abstract
No abstract record available.
Inventors
- 👤 Sass Friedrich
- 👤 Krauss Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:52
CPC Classifications
F; F02; F02B; F02B23/00; F02B2720/00; F02B2720/25; F02B2720/257; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1933-01-06 | 1933-07-08 | 1934-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-01-06 | 1937-07-08 | 1938-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-01-06 | 1941-07-08 | 1942-01-07 | $7700.00 | Window Closed / Lapsed |