US3551525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface coating copolymers containing etherified n-methylolamide
Assignee: BASF SE
•
Filing: 1968-11-19
•
Granted: 1970-12-29
•
Expires: 1988-11-19
Abstract
No abstract record available.
Inventors
- 👤 Hans Wilhelm
- 👤 Ernst Penning
- 👤 Klaus Gulbins
- 👤 Heinrich Hartmann
- 👤 Ernst Wilhelm Hann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:36
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06; C09; C09D; C09D151/00; C09D151/003
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) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |