US3382200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for treating and brightening cellulose fibers
Assignee: Wyeth Holdings LLC
•
Filing: 1966-09-29
•
Granted: 1968-05-07
•
Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 Buell Bennett George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:04
CPC Classifications
D; D06; D06L; D06L4/00; D06L4/60; D06L4/664; D06L4/657
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |