US2684349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone rubber having improved flame-retardant properties
Assignee: General Electric Co
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Filing: 1952-12-17
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Granted: 1954-07-20
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Expires: 1972-12-17
Abstract
No abstract record available.
Inventors
- 👤 John J Whelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/40; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A COMPOSITION OF MATTER HAVING IMPROVED FIRE-RETARDANT PROPERTIES COMPRISING A HEAT CONVERTIBLE ORGANOPOLYSILOXANE IN WHICH THE ORGANIC GROUPS ARE SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, ARALKYL, AND HALOGENATED ARYL RADICALS, THE MAJORITY OF THE ORGANIC GROUPS BEING ALKYL RADICALS, A FILLER, AND AT LEAST 5 PER CENT, BY WEIGHT, OF A FINELY DIVIDED, LOW-MELTING GLASS FRIT HAVING A SOFTENING POINT ABOVE 300* C., BASED ON THE WEIGHT OF THE ORGANOPOLYSILOXANE.
Claim 2
Dependent Claim
72 words
A COMPOSITION OF MATTER HAVING IMPROVED FIRE-RETARDANT PROPERTIES COMPRISING A HEAT CONVERTIBLE ORGANOPOLYSILOXANE IN WHICH THE ORGANIC GROUPS ARE SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, ARALKYL, AND HALOGENATED ARYL RADICALS, THE MAJORITY OF THE ORGANIC GROUPS BEING ALKYL RADICALS, A FILLER, AND AT LEAST 5 PER CENT, BY WEIGHT, OF A FINELY DIVIDED, LOW-MELTING GLASS FRIT HAVING A SOFTENING POINT ABOVE 300* C., BASED ON THE WEIGHT OF THE ORGANOPOLYSILOXANE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |