US3434806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic muffler
Assignee: Burgess Products Co Ltd
•
Filing: 1965-03-08
•
Granted: 1969-03-25
•
Expires: 1985-03-08
Abstract
No abstract record available.
Inventors
- 👤 Douglas August Charles D Rycke
- 👤 Owen Gordon Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:50
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/2053; F01N3/24; F01N3/28; F01N3/2839; F01N3/2846; F01N3/2882; F01N3/2885; F01N1/00; F01N1/08; F01N2230/00; F01N2230/04; F01N2330/00; F01N2330/08; F01N2450/00; F01N2450/04; F01N2550/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2834657A
Cited
US3100140A
Cited
US3146073A
Cited
US3090677A
Cited
US3186804A
Cited
US3149925A
Cited
US3167400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |