Patent US3527846A successfully refreshed from Google Patents.
US3527846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber-forming compositions having improved dye receptivity
Assignee: Montedison SpA
•
Filing: 1967-05-24
•
Granted: 1970-09-08
•
Expires: 1987-05-24
Abstract
No abstract record available.
Inventors
- 👤 Vittorio Cappuccio
- 👤 Cornelio Caldo
- 👤 Giuseppe Cantatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:41
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/04; C; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08G73/022; C08L; C08L23/00; C08L23/02; C08L23/10; C08L33/00; C08L33/18; C08L33/20; D01F1/00; D01F1/02; D01F1/10; D01F6/18; C08K; C08K5/00; C08K5/04; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |