US2906715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulphonamides of organic polymers
Assignee: Bayer AG
•
Filing: 1955-11-28
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Granted: 1959-09-29
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Expires: 1975-11-28
Abstract
No abstract record available.
Inventors
- 👤 Hagge Walter
- 👤 Quaedvlieg Mathieu
- 👤 Seifert Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:01
CPC Classifications
C; C09; C09B; C09B39/00; B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/20; C08; C08F; C08F8/00; C08F8/30; C08F2810/00; C08F2810/20
Claims Analysis
Total Claims: 0
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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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |