US3734784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating aluminum surfaces
Assignee: Individual
•
Filing: 1970-01-14
•
Granted: 1973-05-22
•
Expires: 1990-01-14
Abstract
Abstract A TREATED ALUMINUM SURFACE IS PROVIDED HAVING CHEMICALLY BONDED THERETO AN ORGANIC FILM COMPRISING AT ITS BONDING INTERFACE A REACTION PRODUCT OF A FUNCTIONAL GROUP OF AN ORGAIC COMPOUND AND AN ACTIVE HYDRATED AMORPHOUS LAYER OF ALUMINUM OXIDE INTERGRAL WITH THE ALUMINUM SURFACE, THE ORGANIC COMPOUND HAVING AT LEAST 8 CARBON ATOMS AND BEING CHARACTERIZED BY SAID FUNCTIONAL GROUP WHICH REACTS WITH AN ALIPHATIC ALCOHOL, THE ACTIVE HYDRATED AMORPHOUS LAYER OF ALUMINUM OXIDE BEING CHARACTERIZED CHEMICALLY IN THAT IT REACTS LIKE AN ALCOHOL WITH THE FUNCTIONAL GROUP OF SAID ORGANIC COMPOUND.
Inventors
- 👤 S Bereday
- 👤 E Kolic
- 👤 H Grotta
- 👤 J Gibbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:21
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/82; C23C22/83; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31529; Y10T428/31551; Y10T428/31605; Y10T428/31678; Y10T428/31681
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |