US2927042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing scales, patterns and the like in glass
Assignee: Australian Government
•
Filing: 1956-02-16
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Granted: 1960-03-01
•
Expires: 1976-02-16
Abstract
No abstract record available.
Inventors
- 👤 Hall Arthur John Charles
- 👤 Hayes James Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:32
CPC Classifications
C; C03; C03C; C03C21/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF PRODUCING A VISIBLE IMAGE OF A PATTERN, SCALE OR THE LIKE WITHIN GLASS WHICH COMPRISES THE STEPS OF, FORMING SAID PATTERN OR SCALE AS A CORRESPONDING COATING ON THE SURFACE OF THE GLASS, SAID COATING BEING A SUBSTANCE OF THE GROUP CONSISTING OF GOLD, SILVER AND COPPER AND THEIR SALTS, SUBJECTING SAID COATING TO OXIDIZING CONDITIONS AT A TEMPERATURE WITHIN THE RANGE OF 200* TO 500* CENTIGRADE TO CAUSE IONS OF THE METAL OF SAID COATING TO PENETRATE INTO THE GLASS, AND SUBJECTING SAID GLASS TO REDUCING CONDITIONS AT A TEMPERATURE WITHIN THE RANGE OF 200* TO 500* CENTIGRADE.
Claim 2
Independent Claim
102 words
A METHOD OF PRODUCING A VISIBLE IMAGE OF A PATTERN, SCALE OR THE LIKE WITHIN GLASS WHICH COMPRISES THE STEPS OF, FORMING SAID PATTERN OR SCALE AS A CORRESPONDING COATING ON THE SURFACE OF THE GLASS, SAID COATING BEING A SUBSTANCE OF THE GROUP CONSISTING OF GOLD, SILVER AND COPPER AND THEIR SALTS, SUBJECTING SAID COATING TO OXIDIZING CONDITIONS AT A TEMPERATURE WITHIN THE RANGE OF 200* TO 500* CENTIGRADE TO CAUSE IONS OF THE METAL OF SAID COATING TO PENETRATE INTO THE GLASS, AND SUBJECTING SAID GLASS TO REDUCING CONDITIONS AT A TEMPERATURE WITHIN THE RANGE OF 200* TO 500* CENTIGRADE.
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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |