US2798007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying a light-diffusing layer to a glass surface
Assignee: US Philips Corp
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Filing: 1954-06-25
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Granted: 1957-07-02
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Expires: 1974-06-25
Abstract
No abstract record available.
Inventors
- 👤 Janssen Gerardus Hendricus
- 👤 Linden Petrus Cornelis Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:00
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/228; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A METHOD OF APPLYING A LIGHT-DIFFUSING LAYER TO A GLASS SURFACE COMPRISING THE STEPS, CONTACTING THE GLASS SURFACE WITH A GASEOUS OXIDATION PRODUCT OF SULFUR OBTAINED BY BURNING THE SO-TREATED SURFACE AN OXIDE OF MAGPRECIPITATING ON THE SO-TREATED SURFACE AN OXIDE OF MAGNESIUM OBTAINED BY THE COMBUSTION OF MAGNESIUM.
Claim 2
Independent Claim
49 words
A METHOD OF APPLYING A LIGHT-DIFFUSING LAYER TO A GLASS SURFACE COMPRISING THE STEPS, CONTACTING THE GLASS SURFACE WITH A GASEOUS OXIDATION PRODUCT OF SULFUR OBTAINED BY BURNING THE SO-TREATED SURFACE AN OXIDE OF MAGPRECIPITATING ON THE SO-TREATED SURFACE AN OXIDE OF MAGNESIUM OBTAINED BY THE COMBUSTION OF MAGNESIUM.
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) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |