US1484376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: Individual
•
Filing: 1921-02-21
•
Granted: 1924-02-19
•
Expires: 1941-02-21
Abstract
No abstract record available.
Inventors
- 👤 Lanzerotti-Spina Ettore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:34
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/26; F01L1/265; F01L1/02; F01L1/04; F01L1/047; F01L1/053; F01L2001/0537; F01L3/00; F01L2003/25; F01L2003/251; F02; F02B; F02B2275/00; F02B2275/34
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) | 1927-02-18 | 1927-08-20 | 1928-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-02-18 | 1931-08-20 | 1932-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-02-18 | 1935-08-20 | 1936-02-19 | $7700.00 | Window Closed / Lapsed |