US3524496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fine particles
Assignee: Individual
•
Filing: 1967-12-07
•
Granted: 1970-08-18
•
Expires: 1987-12-07
Abstract
No abstract record available.
Inventors
- 👤 William Richard Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:22
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/36; B; B82; B82Y; B82Y30/00; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01P; C01P2004/00; C01P2004/01; C01P2004/03; C01P2004/30; C01P2004/32; C01P2004/60; C01P2004/64; C01P2006/00; C01P2006/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2862792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |