US3825480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic energy exhaust filter
Assignee: Individual
•
Filing: 1971-12-08
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Granted: 1974-07-23
•
Expires: 1991-12-08
Abstract
Abstract A PROCESS FOR RUPTURING MOLECULAR BONDS IN A MATERIAL USING SONIC ENERGY. THE MATERIAL IS SUBJECTED TO SONIC ENERGY, AND IN A MODIFICATION OF THE PROCESS IT MAY BE CONTACTED WITH A CARRIER AGENT PRIOR TO BEING SUBJECTED TO THE SONIC ENERGY.
Inventors
- 👤 G Herbert
- 👤 A Pelofsky
- 👤 D Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:15
CPC Classifications
F; F02; F02M; F02M27/00; F02M27/08; B; B01; B01D; B01D49/00; B01D49/006; B01D57/00; F01; F01N; F01N3/00; F02M26/00; F02M26/13; F02M26/14; F02M26/15; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |