US2498003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coloring glass
Assignee: Corning Glass Works
•
Filing: 1946-08-19
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Granted: 1950-02-21
•
Expires: 1966-08-19
Abstract
No abstract record available.
Inventors
- 👤 Milton M Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:43
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/06; C03C2217/00; C03C2217/20; C03C2217/25; C03C2217/251; C03C2218/00; C03C2218/10; C03C2218/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF OBTAINING A UNIFORM COLORATION IN THE COPPER-STAINING OF A SODA-LIME-SILICATE GLASS, WHICH COMPRISES FIRST HEATING THE GLASS IN A REDUCING ATMOSPHERE, AND THEREAFTER APPLYING A STAINING COMPOSITION CONTAINING A COMPOUND OF COPPER TO THE GLASS AND HEATING THE GLASS WHILE IN CONTACT WITH SAID STAINING COMPOSITION TO DEVELOP COLOR THERIN.
Claim 2
Independent Claim
53 words
THE METHOD OF OBTAINING A UNIFORM COLORATION IN THE COPPER-STAINING OF A SODA-LIME-SILICATE GLASS, WHICH COMPRISES FIRST HEATING THE GLASS IN A REDUCING ATMOSPHERE, AND THEREAFTER APPLYING A STAINING COMPOSITION CONTAINING A COMPOUND OF COPPER TO THE GLASS AND HEATING THE GLASS WHILE IN CONTACT WITH SAID STAINING COMPOSITION TO DEVELOP COLOR THERIN.
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) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |