US3504484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installations having baffle plate separators
Assignee: AMELIORAIR SA
•
Filing: 1969-01-22
•
Granted: 1970-04-07
•
Expires: 1989-01-22
Abstract
No abstract record available.
Inventors
- 👤 Jean Buffet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:55
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/04; B01D45/06; B01D45/08; B01J; B01J19/00; B01J19/32; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/3221; B01J2219/32213; B01J2219/32224; B01J2219/32227; Y; Y10; Y10T; Y10T292/00; Y10T292/34; Y10T292/76
Claims Analysis
Total Claims: 0
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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) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |