US3110701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymeric composition
Assignee: 3M Co
•
Filing: 1960-06-16
•
Granted: 1963-11-12
•
Expires: 1980-06-16
Abstract
No abstract record available.
Inventors
- 👤 Robert L Wear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:22
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A CONDENSATION COPOLYMER OF AN ORGANIC COMPOUND CONTAINING AT LEAST TWO BENZOSULFIMIDO RESIDUES CONNECTED AT THE NITROGEN ATOMS THEREOF THROUGH A LINKING GROUP WHICH IS A SUBSTANTIALLY INERT ORGANIC CHAIN, WITH A POLYFUNCTIONAL PRIMARY ORGANIC AMINE IN WHICH THE AMINO GROUPS ARE ATTACHED TO THE REMAINDER OF THE COMPOUND THROUGH METHYLENE GROUPS, SAID AMINE BEING FREE FROM FUNCTIONAL GROUPS CAPABLE OF REACTING WITH AMINO GROUPS.
Claim 2
Dependent Claim
65 words
A CONDENSATION COPOLYMER OF AN ORGANIC COMPOUND CONTAINING AT LEAST TWO BENZOSULFIMIDO RESIDUES CONNECTED AT THE NITROGEN ATOMS THEREOF THROUGH A LINKING GROUP WHICH IS A SUBSTANTIALLY INERT ORGANIC CHAIN, WITH A POLYFUNCTIONAL PRIMARY ORGANIC AMINE IN WHICH THE AMINO GROUPS ARE ATTACHED TO THE REMAINDER OF THE COMPOUND THROUGH METHYLENE GROUPS, SAID AMINE BEING FREE FROM FUNCTIONAL GROUPS CAPABLE OF REACTING WITH AMINO GROUPS.
References Cited (Backward Citations)
US2401155A
Cited
US2833753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |