Patent US2958388A successfully refreshed from Google Patents.
US2958388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler
Assignee: Individual
•
Filing: 1958-01-30
•
Granted: 1960-11-01
•
Expires: 1978-01-30
Abstract
No abstract record available.
Inventors
- 👤 Chris H Paulsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:18
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/14; F01N1/00; F01N1/08; F01N1/10; F01N1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1844104A
Cited
US2065343A
Cited
US2241768A
Cited
US2613758A
Cited
US2600236A
Cited
US2824619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |