US4433070B3
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultured onyx products and methods therefor
Assignee: SPECTRUM 21 LICENSING CORP
•
Filing: 1980-05-05
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Granted: 1998-07-21
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Expires: 2000-05-05
Abstract
No abstract record available.
Inventors
- 👤 Gilbert B Ross
- 👤 Theodore E Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:53
CPC Classifications
B; B44; B44F; B44F9/00; B44F9/04; C; C08; C08L; C08L67/00; C08L67/06
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) | 2001-07-20 | 2002-01-19 | 2002-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-20 | 2006-01-19 | 2006-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-20 | 2010-01-19 | 2010-07-21 | $7700.00 | Window Closed / Lapsed |