US2930838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireproof electrical insulation
Assignee: Organico S A
•
Filing: 1957-09-20
•
Granted: 1960-03-29
•
Expires: 1977-09-20
Abstract
No abstract record available.
Inventors
- 👤 Chizallet Georges
- 👤 Dumon Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:05
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/29; H01B7/295; H01B3/00; H01B3/18; H01B3/30; H01B3/307; H01B3/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
FIREPROOF INSULATION COMPRISING IN COMBINATION A FIRST LAYER COMPRISING POLYVINYL CHLORIDE AND AN ADJACENT CONTACTING LAYER COMPRISING A SYNTHETIC LINEAR POLYAMIDE RESIN, AND A FIRE RETARDANT COMBINATION OF A HIGHLY CHLORINATED ORGANIC COMPOUND AND AN ANTIMONY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ANTIMONY OXIDE AND ANTIMONY SULFIDE, SAID HIGHLY CHLORINATED ORGANIC COMPOUND BEING IN AN AMOUNT OF FROM 1-30 PERCENT OF THE
Claim 2
Dependent Claim
63 words
FIREPROOF INSULATION COMPRISING IN COMBINATION A FIRST LAYER COMPRISING POLYVINYL CHLORIDE AND AN ADJACENT CONTACTING LAYER COMPRISING A SYNTHETIC LINEAR POLYAMIDE RESIN, AND A FIRE RETARDANT COMBINATION OF A HIGHLY CHLORINATED ORGANIC COMPOUND AND AN ANTIMONY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ANTIMONY OXIDE AND ANTIMONY SULFIDE, SAID HIGHLY CHLORINATED ORGANIC COMPOUND BEING IN AN AMOUNT OF FROM 1-30 PERCENT OF THE
References Cited (Backward Citations)
US2349952A
Cited
US2413163A
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US2590211A
Cited
US2669521A
Cited
US2480298A
Cited
GB761672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |