US3822240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating powders based on epsilon-caprolactamblocked polyisocyanates
Assignee: Veba Oel AG
•
Filing: 1972-02-04
•
Granted: 1974-07-02
•
Expires: 1992-02-04
Abstract
Abstract POLYURETHANE FORMING COATING POWDERS FOR APPLICATION BY POWDER COATING PROCESSES HAVE A GRAIN SIZE OF 0.25 MM. OR LESS AND INCLUDE E-CAPROLACTAM BLOCKED POLYISOCYANATES AND HYDROXYL CONTAINING, AROMATIC POLYCARBOXYLIC ACID BASED POLYESTERS.
Inventors
- 👤 F Schmitt
- 👤 K Schmitt
- 👤 J Disteldorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:32
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/4219; A; A61; A61K; A61K31/00; A61K31/33; A61K31/335; A61K31/35; A61P; A61P37/00; A61P37/08; C07; C07D; C07D311/00; C07D311/02; C07D311/78; C07D311/80; C07D311/82; C07D311/84; C07D311/86; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/807; C08G18/8074; C09; C09D; C09D175/00; C09D175/04; C09D175/06; C08G2150/00; C08G2150/20; Y; Y10; Y10S; Y10S524/00; Y10S524/904; Y10S525/00; Y10S525/934; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |