US1602797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine piston and piston-rod assembly
Assignee: Knight & Kilbourne Dev Co
•
Filing: 1923-06-08
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Granted: 1926-10-12
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Expires: 1943-06-08
Abstract
No abstract record available.
Inventors
- 👤 Charles Y Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:54
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/02; F02F3/04; F02F3/08; F05; F05C; F05C2201/00; F05C2201/04; F05C2201/0433; F05C2201/0448
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) | 1929-10-11 | 1930-04-12 | 1930-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-11 | 1934-04-12 | 1934-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-11 | 1938-04-12 | 1938-10-12 | $7700.00 | Window Closed / Lapsed |