US3527318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet-engine silencer
Assignee: Bertin Technologies SAS
•
Filing: 1969-07-29
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Granted: 1970-09-08
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Expires: 1989-07-29
Abstract
No abstract record available.
Inventors
- 👤 Louis Duthion
- 👤 Arsene Marzouvanlian
- 👤 Andre E R Cabassut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:38
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/54; F02K1/56; F02K1/38; F02K1/386; F02K1/40; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |