Patent US4794927A successfully refreshed from Google Patents.
US3351518A
Expired / Lapsed
US
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Laminated glass structure
Assignee: Libbey Owens Ford Glass Co
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Filing: 1962-12-14
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Granted: 1967-11-07
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:45
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10339; B32B17/10009; B32B17/10036; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A LAMINATED GLASS GLAZING UNIT HAVING A TOTAL VISIBLE LIGHT TRANSMITTANCE OF MORE THAN 70 PERCENT AND A TOTAL SOLAR RADIATION TRANSMITTANCE OF LESS THAN 58 PERCENT, COMPRISING A FIRST SHEET OF AN IRON OXIDE-CONTAINING HEAT ABSORBING PLATE GLASS, A SECOND SHEET OF REGULAR CLEAR PLATE GLASS, AND A PLASTIC INTERLAYER INTERPOSED BETWEEN AND BONDED TO BOTH SAID FIRST AND SECOND GLASS SHEETS, SAID INTERLAYER BEING COMPOSED OF A VINYL BUTYRAL RESIN INTERNALLY AND HOMOGENEOUSLY PIGMENTED WITH CARBON BLACK AND HAVING A TOTAL VISIBLE LIGHT TRANSMITTANCE IN THE RANGE OF ABOUT 78 TO 85 PERCENT.
Claim 2
Dependent Claim
95 words
A LAMINATED GLASS GLAZING UNIT HAVING A TOTAL VISIBLE LIGHT TRANSMITTANCE OF MORE THAN 70 PERCENT AND A TOTAL SOLAR RADIATION TRANSMITTANCE OF LESS THAN 58 PERCENT, COMPRISING A FIRST SHEET OF AN IRON OXIDE-CONTAINING HEAT ABSORBING PLATE GLASS, A SECOND SHEET OF REGULAR CLEAR PLATE GLASS, AND A PLASTIC INTERLAYER INTERPOSED BETWEEN AND BONDED TO BOTH SAID FIRST AND SECOND GLASS SHEETS, SAID INTERLAYER BEING COMPOSED OF A VINYL BUTYRAL RESIN INTERNALLY AND HOMOGENEOUSLY PIGMENTED WITH CARBON BLACK AND HAVING A TOTAL VISIBLE LIGHT TRANSMITTANCE IN THE RANGE OF ABOUT 78 TO 85 PERCENT.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |