US3576908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinkable composition of unsaturated polymers and precursor of a polyfunctional nitrile n-oxide
Assignee: Hercules LLC
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Filing: 1970-02-20
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Granted: 1971-04-27
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Expires: 1990-02-20
Abstract
Abstract A CROSS-LINKABLE COMPOSITION IS OBTAINED BY ADMIXING AN UNSATURATED POLYMER, A PRECURSOR OF A POLYFUNCTIONAL NITRILE N-OXIDE OR NITRILE IMINE COMPOUND AND AN AMMONIA- OR AMINE-YIELDING COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIA-OR AMINE-YIELDING COORDINATION COMPOUNDS OF CERTAIN METALS, AMMONIA- OR AMINE YIELDING EXTRA-COORDINATE SILICONATE SALTS AND AMINE-YIELDING ORGANIC-SUBSTITUTED AMMONIUM SALTS.
Inventors
- 👤 Karl Brack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:31
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/91; C08G63/914; C08G63/918; C08G18/00; C08G18/06; C08G18/83; C08G18/833; C08G63/66; C08G63/668; C08G63/676; C08K; C08K5/00; C08K5/16; C08K5/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |