US2676946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonflammable molding compositions and method of making same
Assignee: Dow Chemical Co
•
Filing: 1950-09-11
•
Granted: 1954-04-27
•
Expires: 1970-09-11
Abstract
No abstract record available.
Inventors
- 👤 John L Mccurdy
- 👤 Kin Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02; C08K5/03; Y; Y10; Y10S; Y10S521/00; Y10S521/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A NON-FLAMMABLE MOLDING COMPOSITION COMPRISING: (1) AT LEAST 80 PER CENT BY WEIGHT OF A THERMOPLASTIC POLYMER COMPRISING IN CHEMICALLY COMBINED FORM AT LEAST 50 PER CENT BY WEIGHT OF AT LEAST ONE ALKENYL AROMATIC COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
40 words
A NON-FLAMMABLE MOLDING COMPOSITION COMPRISING: (1) AT LEAST 80 PER CENT BY WEIGHT OF A THERMOPLASTIC POLYMER COMPRISING IN CHEMICALLY COMBINED FORM AT LEAST 50 PER CENT BY WEIGHT OF AT LEAST ONE ALKENYL AROMATIC COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US1985771A
Cited
GB554602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |