US2473103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baffle type muffler
Assignee: Individual
•
Filing: 1946-04-11
•
Granted: 1949-06-14
•
Expires: 1966-04-11
Abstract
No abstract record available.
Inventors
- 👤 Matthew F Lathers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:44
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N1/085; F01N1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317858A
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US1772589A
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US1777522A
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US1816245A
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US1916908A
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US2206193A
Cited
US2122086A
Cited
US2378083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |