US3041228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making luminescent screens
Assignee: I J MCCULLOUGH
•
Filing: 1956-11-26
•
Granted: 1962-06-26
•
Expires: 1976-11-26
Abstract
No abstract record available.
Inventors
- 👤 Norman A Macleod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:48
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/24; G; G21; G21K; G21K4/00; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T428/00; Y10T428/16; Y10T428/162; Y10T428/24; Y10T428/24942; Y10T428/2495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
METHOD OF MAKING LUMINESCENT COMPARTMENTED SCREENS COMPRISING: FORMING A PLURALITY OF LAMINATIONS HAVING CORRUGATED FACE SURFACES ANDWHEREIN AT LEAST SOME OF SAID LAMINATIONS ARE FORMED OF LUMINESCENT MATERIAL, APPLYING AN OPAQUE COATING TO THE FACES OF SAID LAMINATIONS, STACKING SAID LAMINATIONS WITH SAID CORRUGATIONS IN INTERFITTING ENGAGEMENT, SAID COATING FORMING AN OPAQUE WALL BETWEEN ADJACENT LAMINATIONS, AND SLICING SAID LAMINATIONS ALONG PARALLEL PLANES PERPENDICULAR TO SAID CORRUGATIONS TO FORM A MEMBER HAVING A PLURALITY OF COMPARTMENTED SCREENS.
Claim 2
Dependent Claim
77 words
METHOD OF MAKING LUMINESCENT COMPARTMENTED SCREENS COMPRISING: FORMING A PLURALITY OF LAMINATIONS HAVING CORRUGATED FACE SURFACES ANDWHEREIN AT LEAST SOME OF SAID LAMINATIONS ARE FORMED OF LUMINESCENT MATERIAL, APPLYING AN OPAQUE COATING TO THE FACES OF SAID LAMINATIONS, STACKING SAID LAMINATIONS WITH SAID CORRUGATIONS IN INTERFITTING ENGAGEMENT, SAID COATING FORMING AN OPAQUE WALL BETWEEN ADJACENT LAMINATIONS, AND SLICING SAID LAMINATIONS ALONG PARALLEL PLANES PERPENDICULAR TO SAID CORRUGATIONS TO FORM A MEMBER HAVING A PLURALITY OF COMPARTMENTED SCREENS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |