Patent US2419664A successfully refreshed from Google Patents.
US2419664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined air filter and muffler
Assignee: Individual
•
Filing: 1944-06-23
•
Granted: 1947-04-29
•
Expires: 1964-06-23
Abstract
No abstract record available.
Inventors
- 👤 Paul C Tabbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:53
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/14; F02M35/12; F02M35/1205; F02M35/1211; F02M35/1216
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US378762A
Cited
US1195983A
Cited
US1479714A
Cited
US1514441A
Cited
US1581365A
Cited
FR642118A
Cited
US1960260A
Cited
US2361394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |