Patent US3149234A successfully refreshed from Google Patents.
US3149234A
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High density, soft phosphate glass, method, and gamma radiation shielding window
Assignee: Corning Glass Works
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Filing: 1959-10-27
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Granted: 1964-09-15
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Expires: 1979-10-27
Abstract
No abstract record available.
Inventors
- 👤 Harrison P Hood
- 👤 Thomas C Macavoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
G; G21; G21F; G21F7/00; G21F7/02; G21F7/03; C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/17; C03C4/00; C03C4/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
A GAMMA RADIATION-SHIELDING WINDOW COMPRISING AN HERMETICALLY SEALED CELL HAVING TWO OPPOSITE TRANSPARENT WALLS AND ENCLOSING A GLASS CONSISTING ESSENTIALLY ON A MOLE PERCENT BASIS OF 26-51% P2O5, 33-56% H2O, AND A TOTAL OF 12-26% OF AN OXIDE OF A METAL OF THE SIXTH PERIOD OF THE PERIODIC TABLE SEELCTED FROM THE GROUP CONSISTING OF PBO, HGO, AND TL2O, AND 0-5% OF OTHER GLASSMAKING METALLIC OXIDES SELECTED FROM THE GROUP CONSISTING OF AL2O3, BAO, THO2, CS2O, BI2O3, K2O, SNO, AND ZNO, THE MAXIMUM TOTAL WEIGHT PERCENT OF THE P2O AND H2O BEING 70%.
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |