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US753845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasolene-engine muffler.
Assignee: Individual
•
Filing: 1903-08-07
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Granted: 1904-03-08
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Expires: 1923-08-07
Abstract
No abstract record available.
Inventors
- 👤 Richard W Brockway
- 👤 Francis J Meckensturm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:36
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/04
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) | 1907-03-08 | 1907-09-07 | 1908-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-03-08 | 1911-09-07 | 1912-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-03-08 | 1915-09-07 | 1916-03-08 | $7700.00 | Window Closed / Lapsed |