US3412825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silencer or muffler and method of producing same
Assignee: APX GROUP Inc
•
Filing: 1967-08-11
•
Granted: 1968-11-26
•
Expires: 1987-08-11
Abstract
No abstract record available.
Inventors
- 👤 James R Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:35
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N2450/00; F01N2450/22; F01N2470/00; F01N2470/02; F01N2470/10; F01N2470/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972065A
Cited
US2182204A
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FR49088E
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US2360429A
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CH308088A
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US2825421A
Cited
US2872998A
Cited
US2834425A
Cited
GB892780A
Cited
US3042138A
Cited
US3159239A
Cited
US3274678A
Cited
US3313373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |