US2585506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of halogen-containing organic materials
Assignee: Shell Development Co
•
Filing: 1948-06-21
•
Granted: 1952-02-12
•
Expires: 1968-06-21
Abstract
No abstract record available.
Inventors
- 👤 Edward C Shokal
- 👤 De Loss E Winkler
- 👤 Paul A Devlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:12
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L29/00; C08L29/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A COMPOSITION OF MATTER COMPRISING A HIGH MOLECULAR WEIGHT HALOGENATED HYDROCARBON IN ADMIXTURE WITH FROM ABOUT 2 TO 5%, BASED ON THE WEIGHT OF HALOGENATED HYDROCARBON, OF LIQUID POLYMER OF ALLYL GLYCIDYL ETHER, WHICH POLYMER CONTAINS AT LEAST THREE EPOXIDE GROUPS PER MOLECULE.
Claim 2
Dependent Claim
43 words
A COMPOSITION OF MATTER COMPRISING A HIGH MOLECULAR WEIGHT HALOGENATED HYDROCARBON IN ADMIXTURE WITH FROM ABOUT 2 TO 5%, BASED ON THE WEIGHT OF HALOGENATED HYDROCARBON, OF LIQUID POLYMER OF ALLYL GLYCIDYL ETHER, WHICH POLYMER CONTAINS AT LEAST THREE EPOXIDE GROUPS PER MOLECULE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |