Patent US2934456A successfully refreshed from Google Patents.
US2934456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of diffusion resistant coatings
Assignee: Individual
•
Filing: 1957-03-25
•
Granted: 1960-04-26
•
Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 Schutt Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:21
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/48; B; B05; B05D; B05D7/00; B05D7/24; B05D7/26; B29; B29C; B29C70/00; B29C70/58; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C23C4/00; C23C4/04; C23C4/06; C23C4/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR THE PRODUCTION ON A METALLIC SUPPORT OF A DIFFUSION-RESISTANT PROTECTIVE COATING, BASED ON AN EPOXIDE RESIN HAVING TWO TERMINAL EPOXIDE GROUPS, WHICH COMPRISES PROVIDING THE METALLIC SUPPORT WITH AN OXIDIC ADHESION LAYER HAVING A SPINEL-LIKE CRYSTALLINE STRUCTURE WITH A LATTICE CONSTNT OF APPROXIMATELY FROM 8 TO 8.5, AND APPLYING ON THE ADHESION LAYER A COATING OF A BIS(4-HYDROXPHENYL)-2,2''-PROPANE-EPICHLORHYDRIN REACTION PRODUCT.
Claim 2
Dependent Claim
63 words
A PROCESS FOR THE PRODUCTION ON A METALLIC SUPPORT OF A DIFFUSION-RESISTANT PROTECTIVE COATING, BASED ON AN EPOXIDE RESIN HAVING TWO TERMINAL EPOXIDE GROUPS, WHICH COMPRISES PROVIDING THE METALLIC SUPPORT WITH AN OXIDIC ADHESION LAYER HAVING A SPINEL-LIKE CRYSTALLINE STRUCTURE WITH A LATTICE CONSTNT OF APPROXIMATELY FROM 8 TO 8.5, AND APPLYING ON THE ADHESION LAYER A COATING OF A BIS(4-HYDROXPHENYL)-2,2''-PROPANE-EPICHLORHYDRIN REACTION PRODUCT.
References Cited (Backward Citations)
US2171545A
Cited
GB655891A
Cited
US2487137A
Cited
US2662034A
Cited
US2707691A
Cited
US2762724A
Cited
US2703765A
Cited
US2748030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |