US3174583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler for internal combustion engines
Assignee: Individual
•
Filing: 1961-10-03
•
Granted: 1965-03-23
•
Expires: 1981-10-03
Abstract
No abstract record available.
Inventors
- 👤 Giordano Michele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:06
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N1/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2185584A
Cited
US1811762A
Cited
GB328487A
Cited
US2019746A
Cited
US2014666A
Cited
US2244393A
Cited
US2353914A
Cited
US2404617A
Cited
US2523260A
Cited
US2583366A
Cited
US2557687A
Cited
FR1129207A
Cited
US3016108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |