US2960178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine exhaust system
Assignee: Motors Liquidation Co
•
Filing: 1958-11-24
•
Granted: 1960-11-15
•
Expires: 1978-11-24
Abstract
No abstract record available.
Inventors
- 👤 Lorean John Z De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:00
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; B; B60; B60K; B60K13/00; B60K13/04; F01N13/082; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1560947A
Cited
US1615564A
Cited
US1709426A
Cited
GB446915A
Cited
US2078420A
Cited
US2658580A
Cited
US2833479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |