US2597855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized polyamides and method of preparation
Assignee: Primerica Inc
•
Filing: 1949-11-28
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Granted: 1952-05-27
•
Expires: 1969-11-28
Abstract
No abstract record available.
Inventors
- 👤 John D Czarnecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:50
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24198; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A HOMOGENEOUS COMPOSITION COMPRISING FROM ABOUT 25 TO ABOUT 35 PER CENT BY WEIGHT BY A METHOXYMETHYL SUBSTITUTED LINEAR POLYHEXAMETHYLENE ADIPAMIDE AND FROM ABOUT 65 TO ABOUT 75 PER CENT BY WEIGHT OF 2,2-DI-(4-HYDROXYPROPOXY-PHENYL) PROPANE.
Claim 2
Dependent Claim
21 words
A PLURALITY OF METAL LAYERS HAVING THE COMPOSITION OF CLAIM 7 BETWEEN ADJACENT SURFACES OF SAID LAYERS AS A BONDING MATERIAL.
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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |