US1522111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler for internal-combustion engines
Assignee: Individual
•
Filing: 1924-02-16
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Granted: 1925-01-06
•
Expires: 1944-02-16
Abstract
No abstract record available.
Inventors
- 👤 Franck-Philipson Axel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:38
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/022; F01N13/00; F01N13/009; F01N13/0097; F01N3/005; F01N3/08; F01N3/0807; F01N3/0814; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2832; F01N3/2839; F01N3/2846; F01N3/2882; F01N3/2892; F01N2230/00; F01N2230/02; F01N2240/00; F01N2240/06; F01N2240/20; F01N2250/00; F01N2250/02; F01N2250/12; F01N2260/00; F01N2260/04; F01N2260/06; F01N2260/08; F01N2330/00; F01N2330/06; F01N2330/08; F01N2370/00; F01N2370/22; F01N2370/40; F01N2450/00; F01N2450/24; F01N2450/30; F01N2490/00; F01N2490/18; F01N2510/00; F01N2510/12; F01N2510/14; F01N2610/00; F01N2610/03; Y; Y10; Y10S; Y10S55/00; Y10S55/30; Y10S55/37
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) | 1928-01-06 | 1928-07-07 | 1929-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-01-06 | 1932-07-07 | 1933-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-01-06 | 1936-07-07 | 1937-01-06 | $7700.00 | Window Closed / Lapsed |