US3258630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge lamps
Assignee: —
•
Filing: —
•
Granted: 1966-06-28
•
Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:56
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/10; H01J61/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN ELECTRIC DISCHARGE LAMP COMPRISING AN ENVELOPE INCLUDING TWO MEMBERS HERMETICALLY SEALED TOGETHER, ONE OF SAID MEMBERS HAVING AT LEAST ONE BARRIER FORMED ON ONE OF SAID MEMBERS AND EXTENDING THEREFROM TO THE OTHER MEMBER TO DEFINE A SINUOUS DISCHARGE PATH WITHIN SAID ENVELOPE, ELECTRODES LOCATED AT RESPECTIVE ENDS OF SAID DISCHARGE PATH, A METAL VAPOUR INCLUDING WITHIN SAID ENVELOPE, SAID ONE MEMBER BEING FORMED OF A LIGHT-TRANSMITTING MATERIAL, SAID LIGHT-TRANSMITTING MATERIAL BEING PREVIOUS TO METAL VAPOR, AND A LAYER OF LIGHT-TRANSMITTING IMPERVIOUS MATERIAL IN SEALING RELATION WITH THE OUTER SURFACE OF SAID ONE MEMBER.
Claim 2
Dependent Claim
95 words
AN ELECTRIC DISCHARGE LAMP COMPRISING AN ENVELOPE INCLUDING TWO MEMBERS HERMETICALLY SEALED TOGETHER, ONE OF SAID MEMBERS HAVING AT LEAST ONE BARRIER FORMED ON ONE OF SAID MEMBERS AND EXTENDING THEREFROM TO THE OTHER MEMBER TO DEFINE A SINUOUS DISCHARGE PATH WITHIN SAID ENVELOPE, ELECTRODES LOCATED AT RESPECTIVE ENDS OF SAID DISCHARGE PATH, A METAL VAPOUR INCLUDING WITHIN SAID ENVELOPE, SAID ONE MEMBER BEING FORMED OF A LIGHT-TRANSMITTING MATERIAL, SAID LIGHT-TRANSMITTING MATERIAL BEING PREVIOUS TO METAL VAPOR, AND A LAYER OF LIGHT-TRANSMITTING IMPERVIOUS MATERIAL IN SEALING RELATION WITH THE OUTER SURFACE OF SAID ONE MEMBER.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |