US2598756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanized muffler with concavoconvex baffles
Assignee: Individual
•
Filing: 1947-02-08
•
Granted: 1952-06-03
•
Expires: 1967-02-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick C Brightly
- 👤 John F Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N1/00; F01N1/08; F01N1/083; F01N13/16; F01N13/1888; F01N13/1894; F01N2450/00; F01N2450/22; F01N2490/00; F01N2490/08; F01N2510/00; F01N2510/08; F01N2530/00; F01N2530/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49888
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US689797A
Cited
US1081348A
Cited
US1155317A
Cited
US1756916A
Cited
US1810252A
Cited
US1867273A
Cited
GB364222A
Cited
US1990837A
Cited
US2150768A
Cited
US2345058A
Cited
US2348696A
Cited
US2365846A
Cited
US2373038A
Cited
US2416452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |