Patent US3233699A successfully refreshed from Google Patents.
US3233699A
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Heat and sound insulating jacket for exhaust gas muffler and tail pipe assembly
Assignee: Individual
•
Filing: 1962-01-02
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Granted: 1966-02-08
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Walter A Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:42
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/14; F01N2310/00; F01N2310/02; F01N2450/00; F01N2450/02; F01N2450/18; F01N2530/00; F01N2530/06; Y; Y10; Y10S; Y10S174/00; Y10S174/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA474114A
Cited
US756203A
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US877840A
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US2761525A
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US2726977A
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US2834427A
Cited
US2756172A
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US2937664A
Cited
US3006403A
Cited
US2949975A
Cited
FR1234799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |