US3064336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making mufflers
Assignee: Walker Manufacturing Company of Wisconsin
•
Filing: 1959-09-16
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Granted: 1962-11-20
•
Expires: 1979-09-16
Abstract
No abstract record available.
Inventors
- 👤 Walter H Powers
- 👤 Benton D Jacokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:14
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; B; B21; B21D; B21D53/00; B21D53/88; F01N13/1844; F01N13/185; F01N2260/00; F01N2260/18; F01N2450/00; F01N2450/20; F01N2450/22; F01N2470/00; F01N2470/02; F01N2470/10; F01N2530/00; F01N2530/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49398; Y10T29/49808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1186572A
Cited
US1376957A
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US1378442A
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US1815005A
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US2187431A
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US2435697A
Cited
US2331344A
Cited
US2763924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |