Patent US4393203B1 successfully refreshed from Google Patents.
US4393203B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing alkylpolsaccharides
Assignee: Procter and Gamble Co
•
Filing: 1982-04-26
•
Granted: 1994-05-31
•
Expires: 2002-04-26
Abstract
No abstract record available.
Inventors
- 👤 Mark H K Mao
- 👤 Larry E Miller
- 👤 John M Weeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:58
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C08; C08B; C08B37/00; C11; C11D; C11D1/00; C11D1/66; C11D1/662; Y; Y10; Y10S; Y10S159/00; Y10S159/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1997-05-30 | 1997-11-29 | 1998-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-30 | 2001-11-29 | 2002-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-30 | 2005-11-29 | 2006-05-31 | $7700.00 | Window Closed / Lapsed |