US3094641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent lamp
Assignee: GTE Sylvania Inc
•
Filing: 1960-04-27
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Granted: 1963-06-18
•
Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Warren C Gungle
- 👤 John G Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:03
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/078; H; H01; H01J; H01J61/00; H01J61/02; H01J61/30; H01J61/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A FLUORESCENT LAMP COMPRISING A GLASS ENVELOPE; MERCURY VAPOR AND MEANS TO PRODUCE AN ELECTRIC DISCHARGE IN SAID ENVELOPE; A PHOSPHOR COATING ON THE INNER SURFACE OF SAID ENVELOPE; SAID ENVELOPE COMPRISING A SODALIME GLASS CONTAINING ABOVE ABOUT 5% ALKALI AND EXHIBITING ESSENTIALLY NO DEVITRIFICATION AND HAVING SUFFICIENT
Claim 2
Dependent Claim
48 words
A FLUORESCENT LAMP COMPRISING A GLASS ENVELOPE; MERCURY VAPOR AND MEANS TO PRODUCE AN ELECTRIC DISCHARGE IN SAID ENVELOPE; A PHOSPHOR COATING ON THE INNER SURFACE OF SAID ENVELOPE; SAID ENVELOPE COMPRISING A SODALIME GLASS CONTAINING ABOVE ABOUT 5% ALKALI AND EXHIBITING ESSENTIALLY NO DEVITRIFICATION AND HAVING SUFFICIENT
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |