Patent US1695674A successfully refreshed from Google Patents.
Patent US1400889A successfully refreshed from Google Patents.
US1400889A
Expired / Lapsed
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Internal-combustion engine
Assignee: Worthington Pump and Machinery Corp
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Filing: 1917-06-09
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Granted: 1921-12-20
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Expires: 1937-06-09
Abstract
No abstract record available.
Inventors
- 👤 Charles E Lucke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:31
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0043; F02F7/0046; Y; Y10; Y10S; Y10S123/00; Y10S123/06; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49231; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2174
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) | 1924-12-19 | 1925-06-20 | 1925-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-12-19 | 1929-06-20 | 1929-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-12-19 | 1933-06-20 | 1933-12-20 | $7700.00 | Window Closed / Lapsed |