US3404973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass sheet forming apparatus with coated silica core roller and roller
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1964-03-05
•
Granted: 1968-10-08
•
Expires: 1984-03-05
Abstract
No abstract record available.
Inventors
- 👤 Nedelec Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:46
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; C; C03; C03B; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/181; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5025; C04B41/5042; F; F16; F16C; F16C13/00; F16H; F16H7/00; F16H7/18; B65G2207/00; B65G2207/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A ROLLER FOR THE SUPPORT AND TRANSPORT OF HOT SHEET GLAS, COMPRISING, A CORE OF FUSED SILICA, AND A CONTINUOUS, SMOOTH, MICROBUBBLE-FREE REFRACTORY COATING ADHERENTLY SECURED TO AND ABOUT SAID CORE, SAID COATING CONSISTING OF MATERIAL SELECTED FROM THE GROUP ALUMINA, ZIRCONIA, ZIRCONIUM SILICATE, AND SILICA.
Claim 2
Dependent Claim
46 words
A ROLLER FOR THE SUPPORT AND TRANSPORT OF HOT SHEET GLAS, COMPRISING, A CORE OF FUSED SILICA, AND A CONTINUOUS, SMOOTH, MICROBUBBLE-FREE REFRACTORY COATING ADHERENTLY SECURED TO AND ABOUT SAID CORE, SAID COATING CONSISTING OF MATERIAL SELECTED FROM THE GROUP ALUMINA, ZIRCONIA, ZIRCONIUM SILICATE, AND SILICA.
References Cited (Backward Citations)
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Cited
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Cited
US2300528A
Cited
US2919209A
Cited
US3141756A
Cited
US3239368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |