US3450184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating polymers from their solutions
Assignee: Bayer AG
•
Filing: 1966-07-18
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Granted: 1969-06-17
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Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Hildegard Schnoring
- 👤 Willy Classe
- 👤 Gottfried Pampus
- 👤 Nikolaus Schon
- 👤 Josef Witte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:23
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; C; C08; C08C; C08C2/00; C08C2/06; C08F; C08F6/00; C08F6/06; C08F6/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190721675A
Cited
US2025331A
Cited
US2840149A
Cited
US3009826A
Cited
US3050113A
Cited
US3306342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |