US3870679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke retardant vinyl halide polymers
Assignee: North Carolina National Bank NCNB
•
Filing: 1973-04-16
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Granted: 1975-03-11
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Expires: 1993-04-16
Abstract
Abstract Molybdenum compounds impart smoke retardant properties to combustible materials such as plastics. Thus, for example, polyvinyl chloride does not emit as much smoke during combustion when it is compounded with MoO3.
Inventors
- 👤 Lawrence C Mitchell
- 👤 Haar Gary L Ter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/10; C08K3/11; Y; Y10; Y10S; Y10S521/00; Y10S521/903
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
17 words
AS A COMPOSITION OF MATTER, A POLYVINYL HALIDE ADMIXED WITH A SMOKE RETARDANT AMOUNT OF MOLYBDENUM HEXACARBONYL.
Claim 2
Dependent Claim
17 words
AS A COMPOSITION OF MATTER, A POLYVINYL HALIDE ADMIXED WITH A SMOKE RETARDANT AMOUNT OF MOLYBDENUM HEXACARBONYL.
Claim 3
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of molybdenum hexacarbonyl.
Claim 4
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of molybdenum hexacarbonyl.
Claim 5
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of ammonium paramolybdate.
Claim 6
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of ammonium paramolybdate.
Claim 7
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of molybdenum oxalate.
Claim 8
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of molybdenum oxalate.
Claim 9
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of molybdenum disulfide.
Claim 10
Dependent Claim
17 words
As a composition of matter, a polyvinyl halide admixed with a smoke retardant amount of molybdenum disulfide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |