US1616137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: JENNIE COURTNEY S
•
Filing: 1924-07-12
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Granted: 1927-02-01
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Expires: 1944-07-12
Abstract
No abstract record available.
Inventors
- 👤 Ralph V Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:48
CPC Classifications
F; F02; F02B; F02B7/00; F02B7/02; F02B7/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2201/00; F02B2201/06; F02B2201/062; F02B75/002; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176
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) | 1930-01-31 | 1930-08-02 | 1931-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-01-31 | 1934-08-02 | 1935-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-01-31 | 1938-08-02 | 1939-02-01 | $7700.00 | Window Closed / Lapsed |