Patent US4351753B1 successfully refreshed from Google Patents.
US4351753B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4351753B1 - - Google Patents
Assignee: BASF Corp
•
Filing: 1980-10-24
•
Granted: 1987-07-28
•
Expires: 2000-10-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:26
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/11; A; A01; A01N; A01N25/00; A01N25/30; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C08L; C08L71/00; C08L71/02; C08J2371/00; C08J2371/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02; Y10S516/905; Y10S516/914; Y10S516/916; Y10S516/917; Y10S516/92
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) | 1990-07-27 | 1991-01-26 | 1991-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-27 | 1995-01-26 | 1995-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-27 | 1999-01-26 | 1999-07-28 | $7700.00 | Window Closed / Lapsed |