US2849414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nylon-carbon black composition and article
Assignee: Polymer Corp
•
Filing: 1954-09-21
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Granted: 1958-08-26
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Expires: 1974-09-21
Abstract
No abstract record available.
Inventors
- 👤 Louis L Stott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:11
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/04; B29B17/0404; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; B29K; B29K2077/00; B29K2105/00; B29K2105/25; B29K2105/251; B29L; B29L2031/00; B29L2031/726; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A COMPOSITION HAVING A LOW FILL RATIO COMPRISING A MIXTURE OF FINELY LINEAR POLYAMIDE AND CARBON BLACK, SAID LINEAR POLYAMIDE BEING A POLYAMIDE WHICH IS SOLUBLE IN PHENOL AT ROOM TEMPERATURE AND INSOLUBLE IN ETHYLENE GLYCOL EXCEPT AT TEMPERATURES ABOVE 140* C., AND HAVING AN ULTIMATE PARTICLE SIZE OF LESS THAN 40 MICRONS, SAID CARBON BLACK BEING PRESENT IN A CONCENTRATION OF 5 TO 85 PERCENT BY BULK VOLUME.
Claim 2
Dependent Claim
69 words
A COMPOSITION HAVING A LOW FILL RATIO COMPRISING A MIXTURE OF FINELY LINEAR POLYAMIDE AND CARBON BLACK, SAID LINEAR POLYAMIDE BEING A POLYAMIDE WHICH IS SOLUBLE IN PHENOL AT ROOM TEMPERATURE AND INSOLUBLE IN ETHYLENE GLYCOL EXCEPT AT TEMPERATURES ABOVE 140* C., AND HAVING AN ULTIMATE PARTICLE SIZE OF LESS THAN 40 MICRONS, SAID CARBON BLACK BEING PRESENT IN A CONCENTRATION OF 5 TO 85 PERCENT BY BULK VOLUME.
References Cited (Backward Citations)
US2345533A
Cited
US2592616A
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US2639278A
Cited
US2698966A
Cited
US2695425A
Cited
US2748099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |