Patent US1833265A successfully refreshed from Google Patents.
US1833265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine for gaseous and liquid fuels
Assignee: MOTORENFABRIK DEUTZ AG
•
Filing: 1928-06-23
•
Granted: 1931-11-24
•
Expires: 1948-06-23
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:43
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/06; F02D19/0602; F02D19/0607; F02D19/0663; F02D19/0686; F02D19/0689; F02D19/08; F02D19/10; F02D19/105; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1934-11-23 | 1935-05-25 | 1935-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-23 | 1939-05-25 | 1939-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-23 | 1943-05-25 | 1943-11-24 | $7700.00 | Window Closed / Lapsed |