US3541801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal separator
Assignee: Bertin Technologies SAS
•
Filing: 1968-09-06
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Granted: 1970-11-24
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Expires: 1988-09-06
Abstract
No abstract record available.
Inventors
- 👤 Philippe Albert Hippol Marchal
- 👤 Jacques Louis Paul Simonnet
- 👤 Cyrille Francois Pavlin
- 👤 Marcel Jannot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:06
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/06; F25B9/065; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2093; Y10T137/2229; Y10T137/2251
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) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |