US3100203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialdehyde polysaccharide-acrylamide derivatives
Assignee: Bayer Corp
•
Filing: 1960-05-06
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Granted: 1963-08-06
•
Expires: 1980-05-06
Abstract
No abstract record available.
Inventors
- 👤 Peter J Borchert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:26
CPC Classifications
C; C08; C08B; C08B15/00; C08B31/00; C08B31/18; C08B31/185; D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A DIALDEHYDE POLYSACCHARIDE DERIVATIVE WHEREIN AT LEAST SOME OF THE ALDEHYDE GROUPS OF THE POLYMER UNITS OF SAID DIALDEHYDE POLYSACCHARIDE HAVE BEEN REPLACED BY GROUPS HAVING THE FORMULA:
Claim 2
Dependent Claim
28 words
A DIALDEHYDE POLYSACCHARIDE DERIVATIVE WHEREIN AT LEAST SOME OF THE ALDEHYDE GROUPS OF THE POLYMER UNITS OF SAID DIALDEHYDE POLYSACCHARIDE HAVE BEEN REPLACED BY GROUPS HAVING THE FORMULA:
References Cited (Backward Citations)
US2764503A
Cited
US2885394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |