US2828216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacturing of luminescent screen
Assignee: Individual
•
Filing: 1955-04-18
•
Granted: 1958-03-25
•
Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Delrieu Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:20
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/221; C; C09; C09K; C09K11/00; C09K11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR PROVIDING A SUPPORT SURFACE WITH A LUMINESCENT SCREEN, SAID SUPPORT SURFACE HAVING AN OUTWARDLY PROJECTING PORTION, COMPRISING, COATING SAID SURFACE WITH A LAYER OF A FIRST AMOUNT OF BINDER, DEPOSITING ON SAID LAYER A LAYER OF LUMINESCENT MATERIAL, SAID MATERIAL BEING IN THE FORM OF DRY POWDER, AND THEREAFTER SLOWLY POURING A SECOND AMOUNT OF BINDER ON SAID OUTWARDLY PROJECTING PORTION OF SAID SUPPORT SURFACE, WHICH PORTION WILL BE DEVOID OF SAID LAYER OF LUMINESCENT MATERIAL WHEN THE DEVICE COMPRISING THE SCREEN WILL BE COMPLETED, AND ROTATING SAID SUPPORT SURFACE; THE BINDER OF SAID SECOND AMOUNT BEING IN A LIQUID STATE AND SPREADING THROUGH THE LAYER OF LUMINESCENT MATERIAL BY CAPILLARY ATTRACTION WITHOUT FLOWING ON THE SURFACE OF SAID LAYER.
Claim 2
Dependent Claim
123 words
A PROCESS FOR PROVIDING A SUPPORT SURFACE WITH A LUMINESCENT SCREEN, SAID SUPPORT SURFACE HAVING AN OUTWARDLY PROJECTING PORTION, COMPRISING, COATING SAID SURFACE WITH A LAYER OF A FIRST AMOUNT OF BINDER, DEPOSITING ON SAID LAYER A LAYER OF LUMINESCENT MATERIAL, SAID MATERIAL BEING IN THE FORM OF DRY POWDER, AND THEREAFTER SLOWLY POURING A SECOND AMOUNT OF BINDER ON SAID OUTWARDLY PROJECTING PORTION OF SAID SUPPORT SURFACE, WHICH PORTION WILL BE DEVOID OF SAID LAYER OF LUMINESCENT MATERIAL WHEN THE DEVICE COMPRISING THE SCREEN WILL BE COMPLETED, AND ROTATING SAID SUPPORT SURFACE; THE BINDER OF SAID SECOND AMOUNT BEING IN A LIQUID STATE AND SPREADING THROUGH THE LAYER OF LUMINESCENT MATERIAL BY CAPILLARY ATTRACTION WITHOUT FLOWING ON THE SURFACE OF SAID LAYER.
References Cited (Backward Citations)
US2177691A
Cited
US2435436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |