US1645146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston ring
Assignee: HOPE MACHINE Co
•
Filing: 1924-10-29
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Granted: 1927-10-11
•
Expires: 1944-10-29
Abstract
No abstract record available.
Inventors
- 👤 Kinsley Lewis
- 👤 James W S Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:13
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/14
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) | 1930-10-10 | 1931-04-11 | 1931-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-10 | 1935-04-11 | 1935-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-10 | 1939-04-11 | 1939-10-11 | $7700.00 | Window Closed / Lapsed |