US3370029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retardant compositions for plastics
Assignee: Wyeth Holdings LLC
•
Filing: 1966-03-14
•
Granted: 1968-02-20
•
Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Cannelongo Joseph Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:57
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5393
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A FLAME-RETARDANT COMPOSITION COMPOSED OF A COMBINATION OF (1) A CHLORINATED HYDROCARBON CONTAINING FROM ABOUT 40-80% OF COMBINED CHLORINE AND HAVING A BOILING POINT OF AT LEAST 200*C. AND (2) A PHOSPHONIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
36 words
A FLAME-RETARDANT COMPOSITION COMPOSED OF A COMBINATION OF (1) A CHLORINATED HYDROCARBON CONTAINING FROM ABOUT 40-80% OF COMBINED CHLORINE AND HAVING A BOILING POINT OF AT LEAST 200*C. AND (2) A PHOSPHONIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US3158642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |