US2693668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphase systems of glassy materials
Assignee: Owens Corning
•
Filing: 1951-04-03
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Granted: 1954-11-09
•
Expires: 1971-04-03
Abstract
No abstract record available.
Inventors
- 👤 Slayter Games
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:35
CPC Classifications
C; C03; C03C; C03C14/00; C03C14/002; C03C2214/00; C03C2214/02; Y; Y10; Y10S; Y10S264/00; Y10S264/19; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249928; Y10T428/249929; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A COMPOSITE STRUCTURE COMPRISING A HETEROGENEOUS SYSTEM FORMED OF SUBSTANTAIALLY SEPARATED PHASES OF GLASSY MATERIAL HAVING SUBSTANTIALLY SIMILAR WORKING TEMPERATURE RANGE AND STRONGLY BONDED ONE TO ANOTHER AT THEIR INTERFACES BUT WITH SUBSTANTIAL DIFFERENCES BETWEEN THEIR COEFFICIENTS OF THERMAL EXPANSION WITH ONE OF THE PHASES COMPRISING A MATRIX OF FUSED GLASS WITH THE OTHER PHASE BEING PRESENT IN FIBROUS FORM UNIFORMLY DISPERSED THROUGHOUT THE MATRIX.
Claim 2
Dependent Claim
65 words
A COMPOSITE STRUCTURE COMPRISING A HETEROGENEOUS SYSTEM FORMED OF SUBSTANTAIALLY SEPARATED PHASES OF GLASSY MATERIAL HAVING SUBSTANTIALLY SIMILAR WORKING TEMPERATURE RANGE AND STRONGLY BONDED ONE TO ANOTHER AT THEIR INTERFACES BUT WITH SUBSTANTIAL DIFFERENCES BETWEEN THEIR COEFFICIENTS OF THERMAL EXPANSION WITH ONE OF THE PHASES COMPRISING A MATRIX OF FUSED GLASS WITH THE OTHER PHASE BEING PRESENT IN FIBROUS FORM UNIFORMLY DISPERSED THROUGHOUT THE MATRIX.
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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) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |