US3816442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverized polymer solution or dispersion,a polymer powder,a process of production thereof and a powder coating technique
Assignee: Novartis AG
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Filing: 1972-03-23
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Granted: 1974-06-11
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Expires: 1992-03-23
Abstract
Abstract THIS INVENTION RELATES TO SOLID THERMOPLASTIC POLYMER CONTAINING PARTICLES. FROM THESE PARTICLES PURE, POROUS POLYMERIC PARTICLES OF MEDIUM TO HIGH PARTICLES FINENESS CAN BE OBTAINED. THESE POLYMER PARTICLES CAN BE APPLIED BY MEANS OF A POWDER COATING TECHNIQUE ON THE SURFACE OF AN OBJECT AND SINTERED THEREON TO FORM A THERMOPLASTIC FILM. THESE POROUS POLYMER PARTICLES CAN BE FURTHER USED AS FILTER ELEMENTS, CHROMATOGRAPHIC ABSORBERS AND IN ROTATIONAL CASTING.
Inventors
- 👤 K Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/22; C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/12; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; Y; Y10; Y10S; Y10S524/00; Y10S524/904; Y10S524/923
Claims Analysis
Total Claims: 0
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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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |