US2984315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust filter-muffler
Assignee: Individual
•
Filing: 1959-07-02
•
Granted: 1961-05-16
•
Expires: 1979-07-02
Abstract
No abstract record available.
Inventors
- 👤 Albert L Kleinecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:58
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/0807; F01N3/0821; F01N1/00; F01N1/24; F01N2230/00; F01N2230/02; F01N2250/00; F01N2250/14; F01N2330/00; F01N2330/08; F01N2370/00; F01N2370/40; F01N2450/00; F01N2450/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 0
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US2077563A
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US2420789A
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US2560152A
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US2824619A
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US2924293A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |