Patent US3850867A successfully refreshed from Google Patents.
US3850867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-stick coating compositions of fluorocarbon resin particles and aqueous slip of sintered glaze particles
Assignee: Tefal SAS
•
Filing: 1973-03-20
•
Granted: 1974-11-26
•
Expires: 1993-03-20
Abstract
Abstract 1. A NON-STICK COATING COMPOSITION FOR COATING METAL SURFACES CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF FLUOROCARBON RESIN PARTICLES, A NON-IONIC WETTING AGENT AND AN AQUEOUS SLIP CONSISTING OF SINTERED GLAZE PARTICLES HAVING A MELTING POINT SUBSTANTIALLY BETWEEN 500 AND 600* C., THE PERCENTAGES OF THE FLUOROCARBON RESIN PARTICLES AND OF THE SINTERED GLAZE PARTICLES BEING SUBSTANTIALLY AS FOLLOWS: FLUOROCARBON RESIN PARTICLES: BETWEEN 30% AND 50% BY WEIGHT OF THE COMPOSITION; SINTERED GLAZE PARTICLES: BETWEEN 10% AND 30% BY WEIGHT OF THE COMPOSITION.
Inventors
- 👤 L Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:02
CPC Classifications
C; C23; C23D; C23D5/00; C23D5/02; A; A47; A47J; A47J36/00; A47J36/02; B; B05; B05D; B05D5/00; B05D5/08; B05D5/083; C03; C03C; C03C12/00; C03C4/00; C03C8/00; C03C8/14; C03C8/16; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C03C2207/00; C03C2207/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A NON-STICK COATING COMPOSITION FOR COATING METAL SURFACES CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF FLUOROCARBON RESIN PARTICLES, A NON-IONIC WETTING AGENT AND AN AQUEOUS SLIP CONSISTING OF SINTERED GLAZE PARTICLES HAVING A MELTING POINT SUBSTANTIALLY BETWEEN 500 AND 600* C., THE PERCENTAGES OF THE FLUOROCARBON RESIN PARTICLES AND OF THE SINTERED GLAZE PARTICLES BEING SUBSTANTIALLY AS FOLLOWS: FLUOROCARBON RESIN PARTICLES: BETWEEN 30% AND 50% BY WEIGHT OF THE COMPOSITION; SINTERED GLAZE PARTICLES: BETWEEN 10% AND 30% BY WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
82 words
A NON-STICK COATING COMPOSITION FOR COATING METAL SURFACES CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF FLUOROCARBON RESIN PARTICLES, A NON-IONIC WETTING AGENT AND AN AQUEOUS SLIP CONSISTING OF SINTERED GLAZE PARTICLES HAVING A MELTING POINT SUBSTANTIALLY BETWEEN 500 AND 600* C., THE PERCENTAGES OF THE FLUOROCARBON RESIN PARTICLES AND OF THE SINTERED GLAZE PARTICLES BEING SUBSTANTIALLY AS FOLLOWS: FLUOROCARBON RESIN PARTICLES: BETWEEN 30% AND 50% BY WEIGHT OF THE COMPOSITION; SINTERED GLAZE PARTICLES: BETWEEN 10% AND 30% BY WEIGHT OF THE COMPOSITION.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |