US3451579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite lamp article with glass-ceramic lamp envelope
Assignee: OI Glass Inc
•
Filing: 1966-08-01
•
Granted: 1969-06-24
•
Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Frederic L Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:05
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/36; C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/11; C03C3/112; C03C8/00; C03C8/24; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/636; C04B35/6365; C04B37/00; C04B37/04; C04B37/045; F; F21; F21V; F21V3/00; F21V3/04; H01J; H01J5/00; H01J5/02; H01J5/04; H01J5/20; H01J5/22; H01J5/24; C04B2237/00; C04B2237/02; C04B2237/10; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/50; C04B2237/70; C04B2237/708; C04B2237/76; C04B2237/78; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A COMPOSITE LAMP ARTICLE OF MANUFACTURE WHEREIN SAID LAMP ARTICLE COMPRISES SEALED PARTS, SAID PARTS CONSISTING OF A PREFORMED HOLLOW LOW THERMAL COEFFICIENT OF EXPANSION GLASS-CERAMIC ENVELOPE AND A PREFORMED RADIANT ENERGY TRANSMITTING LOW EXPANSION SILICA GLASS WINDOW, BOTH HAVING COMPATIBLE BLOW COEFFICIENTS OF THERMAL EXPANSION NOT IN EXCESS OF 25X10-7, THE LATTER INTIMATELY BONDED TO SAID ENVELOPE BY A VITREOUS COPPER CONTAINER SEALING GLASS CONSISTING ESSENTIALLY OF 75 TO 80 MOLE PERCENT SIO2, 8 TO 12 MOLE PERCENT A12O2, AND 10 TO 15 MOLE PERCENT CU2O.
Claim 2
Dependent Claim
87 words
A COMPOSITE LAMP ARTICLE OF MANUFACTURE WHEREIN SAID LAMP ARTICLE COMPRISES SEALED PARTS, SAID PARTS CONSISTING OF A PREFORMED HOLLOW LOW THERMAL COEFFICIENT OF EXPANSION GLASS-CERAMIC ENVELOPE AND A PREFORMED RADIANT ENERGY TRANSMITTING LOW EXPANSION SILICA GLASS WINDOW, BOTH HAVING COMPATIBLE BLOW COEFFICIENTS OF THERMAL EXPANSION NOT IN EXCESS OF 25X10-7, THE LATTER INTIMATELY BONDED TO SAID ENVELOPE BY A VITREOUS COPPER CONTAINER SEALING GLASS CONSISTING ESSENTIALLY OF 75 TO 80 MOLE PERCENT SIO2, 8 TO 12 MOLE PERCENT A12O2, AND 10 TO 15 MOLE PERCENT CU2O.
References Cited (Backward Citations)
USRE25791E
Cited
US2894166A
Cited
US2904713A
Cited
US2936923A
Cited
US3207936A
Cited
US3298553A
Cited
US3363134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |