US3017285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of writing on anodized aluminum
Assignee: Horizons Inc
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Filing: 1959-05-29
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Granted: 1962-01-16
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Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 Wainer Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:20
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF MARKING AN ALUMINUM SUBSTRATE HAVING A POROUS ANODIZED SURFACE LAYER WHEREIN THE PORES IN SAID SURFACE LAYER HAVE BEEN SEALED, WHICH COMPRISES: OPENING THE PORES IN SAID SURFACE BY CONTACT WITH A SOLUTION OF A STRONG ALKALI SELECTED FRM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ORGANIC AMMONIUM HYDROXIDES; IMPREGNATING THE OPENED PORES OF SAID SURFACE WITH A DILUTE SOLUTION OF A STRONG REDUCING AGENT AND THEREAFTER CONTACTING PORTIONS OF THE IMPREGNATED SURFACE WITH AN INK COMPOSITION CONSISTING ESSENTIALLY OF A SALT OF AN EASILY REDUCIBLE METAL IN A LIQUID VEHICLE.
Claim 2
Independent Claim
95 words
A METHOD OF MARKING AN ALUMINUM SUBSTRATE HAVING A POROUS ANODIZED SURFACE LAYER WHEREIN THE PORES IN SAID SURFACE LAYER HAVE BEEN SEALED, WHICH COMPRISES: OPENING THE PORES IN SAID SURFACE BY CONTACT WITH A SOLUTION OF A STRONG ALKALI SELECTED FRM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ORGANIC AMMONIUM HYDROXIDES; IMPREGNATING THE OPENED PORES OF SAID SURFACE WITH A DILUTE SOLUTION OF A STRONG REDUCING AGENT AND THEREAFTER CONTACTING PORTIONS OF THE IMPREGNATED SURFACE WITH AN INK COMPOSITION CONSISTING ESSENTIALLY OF A SALT OF AN EASILY REDUCIBLE METAL IN A LIQUID VEHICLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |