US3331816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino-functional azomethine containing polysulfide polymers and their reaction products with polyepoxides
Assignee: ATK Launch Systems LLC
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Filing: 1964-09-22
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Granted: 1967-07-18
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Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Bertozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:23
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14; C08L; C08L63/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
A SOLID RESINOUS REACTION PRODUCT OF APOLYEPOXIDE AND AN AMINO-FUNCTIONAL POLYSULFIDE POLYMER, SAID POLYSULFIDE POLYMER HAVING A STRUCTURE CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
22 words
A SOLID RESINOUS REACTION PRODUCT OF APOLYEPOXIDE AND AN AMINO-FUNCTIONAL POLYSULFIDE POLYMER, SAID POLYSULFIDE POLYMER HAVING A STRUCTURE CORRESPONDING TO THE FORMULA
Claim 3
Dependent Claim
24 words
A PROCESS FOR PROVIDING AN AMINO-FUNCTIONAL AZOMETHINE CONTAINING POLYSULFIDE POLYMER COMPRISING THE STEPS OF (A) ADMIXING (I) A LIQUID POLYSULFIDE POLYMER OF THE FORMULA
Claim 4
Dependent Claim
24 words
A PROCESS FOR PROVIDING AN AMINO-FUNCTIONAL AZOMETHINE CONTAINING POLYSULFIDE POLYMER COMPRISING THE STEPS OF (A) ADMIXING (I) A LIQUID POLYSULFIDE POLYMER OF THE FORMULA
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |