US2643731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatably mounted muffler assembly
Assignee: Reed Roller Bit Co
•
Filing: 1948-10-30
•
Granted: 1953-06-30
•
Expires: 1968-10-30
Abstract
No abstract record available.
Inventors
- 👤 Paul E Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:34
CPC Classifications
F; F01; F01B; F01B31/00; F01B31/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US291762A
Cited
US681522A
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US713536A
Cited
US723111A
Cited
US806714A
Cited
US1115704A
Cited
US1613322A
Cited
US2128742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |