US3033782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric agglomerating agents
Assignee: Roehm GmbH Darmstadt
•
Filing: 1958-01-28
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Granted: 1962-05-08
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Expires: 1978-01-28
Abstract
No abstract record available.
Inventors
- 👤 Harald K Rauch
- 👤 Klaus D Tessmar
- 👤 Theodor G Volker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:55
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/48; B; B01; B01J; B01J2/00; B01J2/28; C08F8/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
AN AGGLOMERATING AGEENT COMPRISING A WATER-SOLUBLE LINEAR RESINOUS MACRO-MOLECULAR POLYMER SELECTED FROM THE GROUP CONSISTING OF (1) A COMPOUND WHOSE MOLECULES ARE CONSTRUCTED OF FROM ABOUT 10 TO ABOUT 75 MOL PERCENT OF CYCLIZED DIMETHACRYLOLIMIDE UNITS PER MOLECULE HAVING THE STRUCTURE
Claim 2
Dependent Claim
41 words
AN AGGLOMERATING AGEENT COMPRISING A WATER-SOLUBLE LINEAR RESINOUS MACRO-MOLECULAR POLYMER SELECTED FROM THE GROUP CONSISTING OF (1) A COMPOUND WHOSE MOLECULES ARE CONSTRUCTED OF FROM ABOUT 10 TO ABOUT 75 MOL PERCENT OF CYCLIZED DIMETHACRYLOLIMIDE UNITS PER MOLECULE HAVING THE STRUCTURE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |