US713536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust-pipe muffler for gas or other engines.
Assignee: Individual
•
Filing: 1901-10-11
•
Granted: 1902-11-11
•
Expires: 1921-10-11
Abstract
No abstract record available.
Inventors
- 👤 John L Tobias
- 👤 Charles J Tobias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:24
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08
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) | 1905-11-10 | 1906-05-12 | 1906-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-11-10 | 1910-05-12 | 1910-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-11-10 | 1914-05-12 | 1914-11-11 | $7700.00 | Window Closed / Lapsed |