US2679467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure blowout safety closure
Assignee: PPG Industries Inc
•
Filing: 1951-07-21
•
Granted: 1954-05-25
•
Expires: 1971-07-21
Abstract
No abstract record available.
Inventors
- 👤 Sherts James Hervey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:15
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/10; E06B5/12; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10293; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A TRANSPARENT LAMINATED CLOSURE MEMBER COMPRISING GLASS SHEETS ADHERED TO OPPOSITE FACES OF A THERMOPLASTIC INTERLAYER WHICH PROJECTS BEYOND THE EDGES OF THE SHEETS TO PROVIDE FOR FLEXIBLE MOUNTING OF THE MEMBER WITHIN A STRUCTURE OPENING, ONE OF THE GLASS SHEETS BEING FORMED OF FOUR TRIANGULAR SECTIONS DISPOSED IN SPACED RELATION TO DEFINED INTERSECTING DIAGONAL SPLITTING LINES UPON WHICH THE CONTINUOUS GLASS SHEET AND THE PLASTIC OF THE CLOSURE MEMBER CAN RUPTURE WITHOUT SEPARTION FROM THE STRUCTURE WHEN ONE FACE OF THE CLOSURE MEMBER IS EXPOSED TO A SUDDEN FORCE AS FROM A NEARBY EXPLOSION.
Claim 2
Dependent Claim
95 words
A TRANSPARENT LAMINATED CLOSURE MEMBER COMPRISING GLASS SHEETS ADHERED TO OPPOSITE FACES OF A THERMOPLASTIC INTERLAYER WHICH PROJECTS BEYOND THE EDGES OF THE SHEETS TO PROVIDE FOR FLEXIBLE MOUNTING OF THE MEMBER WITHIN A STRUCTURE OPENING, ONE OF THE GLASS SHEETS BEING FORMED OF FOUR TRIANGULAR SECTIONS DISPOSED IN SPACED RELATION TO DEFINED INTERSECTING DIAGONAL SPLITTING LINES UPON WHICH THE CONTINUOUS GLASS SHEET AND THE PLASTIC OF THE CLOSURE MEMBER CAN RUPTURE WITHOUT SEPARTION FROM THE STRUCTURE WHEN ONE FACE OF THE CLOSURE MEMBER IS EXPOSED TO A SUDDEN FORCE AS FROM A NEARBY EXPLOSION.
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) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |