Patent US4570173A successfully refreshed from Google Patents.
US1739039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler
Assignee: Individual
•
Filing: 1926-06-08
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Granted: 1929-12-10
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Expires: 1946-06-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:42
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N13/1844; F01N13/1855; F01N1/00; F01N1/08; F01N1/083; F01N1/16; F01N1/166; F01N13/02; F01N13/1888; F01N13/1894; F01N5/00; F01N5/02; F01N2260/00; F01N2260/02; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/06; F01N2470/14; F01N2470/16; F01N2490/00; F01N2490/08; F01N2490/14; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-12-09 | 1933-06-10 | 1933-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-12-09 | 1937-06-10 | 1937-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-12-09 | 1941-06-10 | 1941-12-10 | $7700.00 | Window Closed / Lapsed |