Patent US5274422A successfully refreshed from Google Patents.
Patent EP0398319A2 successfully refreshed from Google Patents.
US3260397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube and method of making same
Assignee: US Philips Corp
•
Filing: 1962-02-02
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Granted: 1966-07-12
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Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 Gier Johannes De
- 👤 Nienhuis Willem Fokko
- 👤 Ruis Jan Willem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:51
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
A METHOD OF STRENGTHENING A PART OF A WALL OF AN EVACUATED GLASS VESSEL COMPRISING THE STEPS POSITIONING ABOUT THE PART OF THE WALL TO BE STRENGTHENED WITHOUT SUBJECTING THE WALL TO COMPRESSIVE STRESS A METAL BAND HAVING A RIGID CONFIGURATION CORRESPONDING TO THE OTHER SURFACE OF THE WALL PART TO BE STRENGTHENED, SAID METAL BAND HAVING INTERNAL DIMENSIONS WHICH ARE LARGER THAN THE DIMENSIONS OF THE PART OF THE WALL TO BE STRENGTHENED WHEREBY THE BAND SURROUNDS AND IS SPACED FROM THE WALL PART TO BE STRENGTHENED WITHOUT BEING IN CONTACT WITH ANY PORTION THEREOF AND DOES NOT SUBJECT THE WALL TO COMPRESSIVE STRESS, AND FILLING THE SPACE BETWEEN THE METAL BAND AND THE PART OF THE ALL TO BE STRENGTHENED WITH A HARDENABLE SYNTHETIC MATERIAL WHICH ADHERES TO THE METAL AND THE WALL.
Claim 2
Independent Claim
135 words
A METHOD OF STRENGTHENING A PART OF A WALL OF AN EVACUATED GLASS VESSEL COMPRISING THE STEPS POSITIONING ABOUT THE PART OF THE WALL TO BE STRENGTHENED WITHOUT SUBJECTING THE WALL TO COMPRESSIVE STRESS A METAL BAND HAVING A RIGID CONFIGURATION CORRESPONDING TO THE OTHER SURFACE OF THE WALL PART TO BE STRENGTHENED, SAID METAL BAND HAVING INTERNAL DIMENSIONS WHICH ARE LARGER THAN THE DIMENSIONS OF THE PART OF THE WALL TO BE STRENGTHENED WHEREBY THE BAND SURROUNDS AND IS SPACED FROM THE WALL PART TO BE STRENGTHENED WITHOUT BEING IN CONTACT WITH ANY PORTION THEREOF AND DOES NOT SUBJECT THE WALL TO COMPRESSIVE STRESS, AND FILLING THE SPACE BETWEEN THE METAL BAND AND THE PART OF THE ALL TO BE STRENGTHENED WITH A HARDENABLE SYNTHETIC MATERIAL WHICH ADHERES TO THE METAL AND THE WALL.
Claim 3
Dependent Claim
89 words
A CATHODE RAY TUBE COMPRISING AN EVACUATED GLASS ENVELOPE HAVING A FACE PORTION AND AN ADJOINING CONE PORTION, AN ANNULAR METAL BAND SPACEDLY POSITIONED AROUND THE PERIPHERY OF SAID TUBE IN THE TRANSITION ZONE BETWEEN THE FACE PORTION AND THE CONE PORTION, SAID METAL BAND BEING RIGID, AND CONFORMING TO THE SHAPE OF THAT PORTION OF THE TUBE WHICH IS SURROUNDS, WITHOUT SUBJECTING THE ENVELOPE TO COMPRESSIVE STRESS, AND A HARDENED SYNTHETIC RESIN WHICH ADHERES TO METAL AND GLASS FILLING THE SPACE BETWEEN THE METAL BAND AND THE ENVELOPE.
Claim 4
Dependent Claim
89 words
A CATHODE RAY TUBE COMPRISING AN EVACUATED GLASS ENVELOPE HAVING A FACE PORTION AND AN ADJOINING CONE PORTION, AN ANNULAR METAL BAND SPACEDLY POSITIONED AROUND THE PERIPHERY OF SAID TUBE IN THE TRANSITION ZONE BETWEEN THE FACE PORTION AND THE CONE PORTION, SAID METAL BAND BEING RIGID, AND CONFORMING TO THE SHAPE OF THAT PORTION OF THE TUBE WHICH IS SURROUNDS, WITHOUT SUBJECTING THE ENVELOPE TO COMPRESSIVE STRESS, AND A HARDENED SYNTHETIC RESIN WHICH ADHERES TO METAL AND GLASS FILLING THE SPACE BETWEEN THE METAL BAND AND THE ENVELOPE.
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |