Polyalkyleneglycol ethers of bis-(hydroxyalkyl)-sulfides
Abstract
Abstract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
Inventors
- 👤 Wilfried Umbach
- 👤 Rainer Mehren
- 👤 Werner Stein
- 👤 Ernst Gott
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |