Patent US1287359A successfully refreshed from Google Patents.
US1287359A
Expired / Lapsed
US
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Sheet-metal internal-combustion engine.
Assignee: International Motor Co
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Filing: 1917-06-21
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Granted: 1918-12-10
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Expires: 1937-06-21
Abstract
No abstract record available.
Inventors
- 👤 August H Leipert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:10
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0021; F02F7/0034
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) | 1921-12-09 | 1922-06-10 | 1922-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-12-09 | 1926-06-10 | 1926-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-12-09 | 1930-06-10 | 1930-12-10 | $7700.00 | Window Closed / Lapsed |