US3108989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric product of a pn ring containing polymer and a carboxylated diene polymer and articles prepared therefrom
Assignee: General Dynamics Corp
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Filing: 1960-06-20
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Granted: 1963-10-29
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 Rip G Rice
- 👤 Buell H Geib
- 👤 Lloyd A Kaplan
- 👤 James R Hooker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:08
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5399; C08G; C08G79/00; C08G79/02; C08L; C08L13/00; C08L85/00; C08L85/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T442/00; Y10T442/20; Y10T442/2475; Y10T442/30; Y10T442/3472; Y10T442/3602; Y10T442/3642
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A POLYMERIC PRODUCT WHICH CONSISTS ESSENTIALLY OF THE ESTER OF (1) A CONDENSATION PRODUCT IN THE FORM OF A POLYMERIC CHAIN CONTAINING AT LEAST TWO CYCLIC PN-CONTAINING RINGS SELECTED FROM THE GROUP CONSISTING OF TRIMERIC AND TETRAMERIC PN RINGS, EACH PAIR OF SUCH ADJACENT RINGS BEING LINKED TOGETHER THROUGH ADJACENT PHOSPHORUS ATOMS IN ADJACENT RINGS BY AT LEAST ONE AROMATIC DIOXY RADICAL, SAID CONDENSATION PRODUCT ALSO CONTAINING AROMATIC OXY RADICALS CONTAINING FREE HYDROXYL GROUPS AND LESS THAN ABOUT 10% CHLORINE, AND (2) AN ELASTOMERIC CONJUGATED DIENE POLYMER CONTAINING FREE CARBOXYL GROUPS.
Claim 2
Dependent Claim
91 words
A POLYMERIC PRODUCT WHICH CONSISTS ESSENTIALLY OF THE ESTER OF (1) A CONDENSATION PRODUCT IN THE FORM OF A POLYMERIC CHAIN CONTAINING AT LEAST TWO CYCLIC PN-CONTAINING RINGS SELECTED FROM THE GROUP CONSISTING OF TRIMERIC AND TETRAMERIC PN RINGS, EACH PAIR OF SUCH ADJACENT RINGS BEING LINKED TOGETHER THROUGH ADJACENT PHOSPHORUS ATOMS IN ADJACENT RINGS BY AT LEAST ONE AROMATIC DIOXY RADICAL, SAID CONDENSATION PRODUCT ALSO CONTAINING AROMATIC OXY RADICALS CONTAINING FREE HYDROXYL GROUPS AND LESS THAN ABOUT 10% CHLORINE, AND (2) AN ELASTOMERIC CONJUGATED DIENE POLYMER CONTAINING FREE CARBOXYL GROUPS.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |