US2962464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable flameproof polyethylene composition
Assignee: Hercules Powder Co
•
Filing: 1958-12-30
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Granted: 1960-11-29
•
Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 George B Feild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/2279; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A HEAT-STABLE, FLAMEPROOF COMPOSITION COMPRISING AT LEAST 50% OF POLYETHYLENE, AT LEAST 15% TOGETHER OF ANTIMONY OXIDE AND CHLORINATED PARAFFIN WAX HAVING FROM 50-80% CHEMICALLY COMBINED CHLORINE, AND AT LEAST 0.1% BY WEIGHT OF PENTAERYTHRITOL, ALL PERCENTAGES BEING BASED ON THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
43 words
A HEAT-STABLE, FLAMEPROOF COMPOSITION COMPRISING AT LEAST 50% OF POLYETHYLENE, AT LEAST 15% TOGETHER OF ANTIMONY OXIDE AND CHLORINATED PARAFFIN WAX HAVING FROM 50-80% CHEMICALLY COMBINED CHLORINE, AND AT LEAST 0.1% BY WEIGHT OF PENTAERYTHRITOL, ALL PERCENTAGES BEING BASED ON THE TOTAL COMPOSITION.
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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |