US1615459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion-engine piston
Assignee: Worthington Pump and Machinery Corp
•
Filing: 1925-06-05
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Granted: 1927-01-25
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Expires: 1945-06-05
Abstract
No abstract record available.
Inventors
- 👤 Jorgensen Olav Eskil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:50
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/002; F02B75/02; F02B2075/022; F02B2075/025; F02B3/00; F02B3/06
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) | 1930-01-24 | 1930-07-26 | 1931-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-01-24 | 1934-07-26 | 1935-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-01-24 | 1938-07-26 | 1939-01-25 | $7700.00 | Window Closed / Lapsed |