US3760003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenated polyphenyl ethers
Assignee: Ethyl Corp
•
Filing: 1970-10-02
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Granted: 1973-09-18
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Expires: 1990-10-02
Abstract
Abstract Halogenated polyphenyl ethers having the general formula WHEREIN: EACH X is independently Cl or Br, EACH M IS INDEPENDENTLY AN INTEGER OF 0 TO 5, EACH P IS INDEPENDENTLY AN INTEGER OF 0 TO 4, N IS AN INTEGER OF 1 TO 5, AND 50 PERCENT OF MORE BY WEIGHT OF THE COMPOUND IS HALOGEN HAVE BEEN FOUND TO BE SUITABLE FIRE RETARDANTS FOR POLYESTER.
Inventors
- 👤 J Funsher
- 👤 A Asadorian
- 👤 H Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:12
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C07; C07C; C07C43/00; C07C43/02; C07C43/257; C07C43/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
The compound of claim 1 having the designation perbrominated p-6P5E and the formula (C6Br5-O-C6Br4-O-C6Br4)2O.
Claim 2
Dependent Claim
14 words
The compound of claim 1 having the designation perbrominated p-3P2E and the formula C6Br5-O-C6Br4-O-C6Br5.
References Cited (Backward Citations)
US3532759A
Cited
US3567781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |