US2950193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing electrical apparatus
Assignee: Lanteris Space LLC
•
Filing: 1953-08-25
•
Granted: 1960-08-23
•
Expires: 1973-08-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul D Payne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:42
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/30; H01J29/32; H01J29/325; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
THE METHOD OF FORMING A CATHODE RAY TUBE SCREEN STRUCTURE ON A GLASS SUBSTRATE WHICH IS SUITABLE FOR INCORPORATION IN A CATHODE RAY TUBE AS THE SCREEN SUPPORTING PORTION THEREOF, SAID METHOD COMPRISING THE STEPS OF: DEPOSITING ON ALL AREAS OF SAID SUBSTRATE A SUBSTANTIALLY TRANSPARENT LAYER OF UNEXPOSED PHOTOSENSITIVE MATERIAL HAVING SUBSTANTIALLY DIFFERENT SOLUBILITY IN A PREDETERMINED SOLVENT BEFORE AND AFTER EXPOSURE, EXPOSING THROUGHOUT THE ENTIRE DEPTH OF SAID LAYER THOSE PORTIONS OF SAID LAYER DEPOSITED ON SELECTED AREAS OF SAID SUBSTRATE THEREBY TO MODIFY THE SOLUBILITY IN SAID SOLVENT OF ALL OF THE PHOTOSENSITIVE MATERIAL OCCUPYING SAID LAST-MENTIONED SELECTED AREAS, DEPOSITING DIRECTLY ON EXPOSED AND UNEXPOSED PORTIONS OF SAID LAYER SOLID PARTICLES OF A SUBSTANCE WHICH IS SUBSTANTIALLY UNAFFECTED BY TEMPERATURES AT WHICH SAID PHOTOSENSITIVE MATERIAL VAPORIZES AND WHICH IS RESPONSIVE TO ELECTRON BEAM IMPINGEMENT TO EMIT RADIANT ENERGY, SAID LAYER BEING RETENTIVE OF SAID SUBSTANCE AT LEAST IN ITS CONDITION OF LESSER SOLUBILITY, AND SUBSEQUENTLY WASHING THE RESULTANT ASSEMBLY WITH SAID
Claim 2
Independent Claim
164 words
THE METHOD OF FORMING A CATHODE RAY TUBE SCREEN STRUCTURE ON A GLASS SUBSTRATE WHICH IS SUITABLE FOR INCORPORATION IN A CATHODE RAY TUBE AS THE SCREEN SUPPORTING PORTION THEREOF, SAID METHOD COMPRISING THE STEPS OF: DEPOSITING ON ALL AREAS OF SAID SUBSTRATE A SUBSTANTIALLY TRANSPARENT LAYER OF UNEXPOSED PHOTOSENSITIVE MATERIAL HAVING SUBSTANTIALLY DIFFERENT SOLUBILITY IN A PREDETERMINED SOLVENT BEFORE AND AFTER EXPOSURE, EXPOSING THROUGHOUT THE ENTIRE DEPTH OF SAID LAYER THOSE PORTIONS OF SAID LAYER DEPOSITED ON SELECTED AREAS OF SAID SUBSTRATE THEREBY TO MODIFY THE SOLUBILITY IN SAID SOLVENT OF ALL OF THE PHOTOSENSITIVE MATERIAL OCCUPYING SAID LAST-MENTIONED SELECTED AREAS, DEPOSITING DIRECTLY ON EXPOSED AND UNEXPOSED PORTIONS OF SAID LAYER SOLID PARTICLES OF A SUBSTANCE WHICH IS SUBSTANTIALLY UNAFFECTED BY TEMPERATURES AT WHICH SAID PHOTOSENSITIVE MATERIAL VAPORIZES AND WHICH IS RESPONSIVE TO ELECTRON BEAM IMPINGEMENT TO EMIT RADIANT ENERGY, SAID LAYER BEING RETENTIVE OF SAID SUBSTANCE AT LEAST IN ITS CONDITION OF LESSER SOLUBILITY, AND SUBSEQUENTLY WASHING THE RESULTANT ASSEMBLY WITH SAID
References Cited (Backward Citations)
US679501A
Cited
US959692A
Cited
US1718945A
Cited
GB244644A
Cited
US2370330A
Cited
GB654504A
Cited
US2653871A
Cited
US2683769A
Cited
US2756167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |