US3600366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bleaching of polymaleate homopolymers and copolymers
Assignee: Procter and Gamble Co
•
Filing: 1969-12-10
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Granted: 1971-08-17
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Expires: 1989-12-10
Abstract
Abstract THE BLEACHING OF POLYMALEATE HOMOPOLYMERS AND COPOLYMERS BY THE PROCESS WHICH COMPRISES TREATING A POLYMALEATE MATERIAL WITH CHLORINE DIOXIDE IN THE PRESENCE OF AN AQUEOUS SOLVENT.
Inventors
- 👤 David C Heckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:22
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/18; C08F8/20
Claims Analysis
Total Claims: 0
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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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |