US2829669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiknock fitting
Assignee: Individual
•
Filing: 1956-06-13
•
Granted: 1958-04-08
•
Expires: 1976-06-13
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Luzynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:17
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/8593; Y10T137/87265; Y10T137/87555
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1169250A
Cited
US1932666A
Cited
US2198021A
Cited
US2273766A
Cited
FR988559A
Cited
US2742928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |