Patent US3738864A successfully refreshed from Google Patents.
US3738864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber bearing antistatic composition
Assignee: EIDP Inc
•
Filing: 1971-04-26
•
Granted: 1973-06-12
•
Expires: 1991-04-26
Abstract
Abstract POLYAMIDE OR POLYESTER FIBER BEARING THE REACTION PRODUCT OF A POLYOXYPROPYLENE DIAMINE AND A POLYEPOXIDE SUBSTANTIALLY FREE FROM ETHYLENEOXY GROUPS PROVIDES A DURABLE ANTISTATIC AGENT WHICH ATTRACTS BRIGHTENERS DURING WASHING BUT DOES NOT ATTRACT DIRT TYPICALLY RETAINED IN DRY CLEANING SOLVENTS DURING DRY CLEANING.
Inventors
- 👤 K Altau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:43
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/221; D06; D06M; D06M13/00; D06M13/322; D06M13/372; D06M15/00; D06M15/19; D06M15/37; D06M15/55; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/20; Y10T442/2418; Y10T442/2434; Y10T442/2459; Y10T442/30; Y10T442/3049
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |