US2748099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide compositions containing a high percentage of metal filler
Assignee: EIDP Inc
•
Filing: 1952-09-04
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Granted: 1956-05-29
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Expires: 1972-09-04
Abstract
No abstract record available.
Inventors
- 👤 Walter M Bruner
- 👤 Peter J Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:51
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; C; C08; C08K; C08K3/00; C08K3/02; C08K3/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
AS A NEW COMPOSITION OF MATTER A LINEAR SYNTHETIC POLYCARBONAMIDE ADMIXED WITH A FINELY DIVIDED METAL FILLER, SAID METAL BEING OF THE CLASS CONSISTING OF COPPER AND LEAD, THE QUANTITY OF SAID METAL BEING FROM 8 TO 15 TIMES THE QUANTITY OF SAID POLYCARBONAMIDE, SAID METAL BEING UNIFORMLY DISTRIBUTED THROUGHOUT SAID POLYCARBONAMIDE, SAID POLYCARBONAMIDE BEING A LINEAR POLYCARBONAMIDE WHEREIN THE CARBONAMIDE GROUPS ARE AN INTEGRAL PART OF THE MAIN CHAIN AND IN WHICH THE SAID CARBONAMIDE GROUPS ARE SEPARATED BY HYDROCARBON GROUPS OF AT LEAST TWO CARBON ATOMS.
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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |