US2516591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filled polymer compositions
Assignee: EIDP Inc
•
Filing: 1948-07-15
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Granted: 1950-07-25
•
Expires: 1968-07-15
Abstract
No abstract record available.
Inventors
- 👤 Remington Ward Jepson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:23
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A COMPOSITION OF MATTER COMPRISING A CHLORINATED SOLID POLYTHENE CONTAINING FROM 20 TO 35% BY WEIGHT OF CHLORINE; AND PER 100 PARTS BY WEIGHT OF SAID CHLORINTED POLYTHENE, FROM 65 TO 115 PARTS BY WEIGHT OF FINELY DIVIDED PRECIPITATED HYDRATED CALCIUM SILICATE.
Claim 2
Dependent Claim
42 words
A COMPOSITION OF MATTER COMPRISING A CHLORINATED SOLID POLYTHENE CONTAINING FROM 20 TO 35% BY WEIGHT OF CHLORINE; AND PER 100 PARTS BY WEIGHT OF SAID CHLORINTED POLYTHENE, FROM 65 TO 115 PARTS BY WEIGHT OF FINELY DIVIDED PRECIPITATED HYDRATED CALCIUM SILICATE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |