US2944926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive windshield
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1956-02-06
•
Granted: 1960-07-12
•
Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 Romey A Gaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:48
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H05B2203/00; H05B2203/017
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
IN A METHOD OF PRODUCING BENT GLASS SHEETS HAVING SELECTED SURFACE AREAS ONLY THAT ARE ELECTRICALLY CONDUCTING AND IN WHICH THE ELECTRICAL CONDUCTIVITY RESULTS FROM THE PRESENCE OF AN ELECTRICALLY CONDUCTING FILM ON SAID SURFACE AREAS, THE STEPS OF APPLYING THE FILM TO A SURFACE OF SAID SHEET WHILE IN THE FLAT, HEATING AND BENDING SAID FILMED SHEET, AND THEN REMOVING PORTIONS OF SAID FILM FROM THE BENT SHEET TO RESTRICT IT TO SAID SELECTED AREAS.
Claim 2
Dependent Claim
76 words
IN A METHOD OF PRODUCING BENT GLASS SHEETS HAVING SELECTED SURFACE AREAS ONLY THAT ARE ELECTRICALLY CONDUCTING AND IN WHICH THE ELECTRICAL CONDUCTIVITY RESULTS FROM THE PRESENCE OF AN ELECTRICALLY CONDUCTING FILM ON SAID SURFACE AREAS, THE STEPS OF APPLYING THE FILM TO A SURFACE OF SAID SHEET WHILE IN THE FLAT, HEATING AND BENDING SAID FILMED SHEET, AND THEN REMOVING PORTIONS OF SAID FILM FROM THE BENT SHEET TO RESTRICT IT TO SAID SELECTED AREAS.
Claim 3
Independent Claim
119 words
THE METHOD OF PRODUCING AN ELECTRICALLY CONDUCTIVE BENT GLASS WINDSHIELD, COMPRISING APPLYING A PAIR OF SPACED, SUBSTANTIALLY PARALLEL STRIPS OF FUSIBLE ELECTRODE MATERIAL ALONG OPPOSITE MARGINS OF A FLAT SHEET OF GALSS, HEATING THE GLASS SHEET TO SUBSTANTIALLY THE POINT OF SOFTENING OF THE GLASS TO FUSE SAID ELECTRODE MATERIAL TO THE GLASS SURFACE, APPLYING AN ELECTRICALLY CONDUCTIVE COATING TO THE SURFACE OF THE HEATED GLASS SHEET CONTAINING THE ELECTRODE MATERIAL AND IN ELECTRICAL CONTACT THEREWITH, HEATING AND BENDING THE GLASS SHEET TO THE DESIRED CURVATURE, THEN REMOVING PART OF THE ELECTRICALLY CONDUCTIVE COATING, AND FINALLY LAMINATING SAID BENT SHEET WITH A SECOND SIMILARLY BENT GLASS SHEET AND AN INTERPOSED LAYER OF THERMOPLASTIC MATERIAL TO FORM A COMPOSITE STRUCTURE.
Claim 4
Independent Claim
119 words
THE METHOD OF PRODUCING AN ELECTRICALLY CONDUCTIVE BENT GLASS WINDSHIELD, COMPRISING APPLYING A PAIR OF SPACED, SUBSTANTIALLY PARALLEL STRIPS OF FUSIBLE ELECTRODE MATERIAL ALONG OPPOSITE MARGINS OF A FLAT SHEET OF GALSS, HEATING THE GLASS SHEET TO SUBSTANTIALLY THE POINT OF SOFTENING OF THE GLASS TO FUSE SAID ELECTRODE MATERIAL TO THE GLASS SURFACE, APPLYING AN ELECTRICALLY CONDUCTIVE COATING TO THE SURFACE OF THE HEATED GLASS SHEET CONTAINING THE ELECTRODE MATERIAL AND IN ELECTRICAL CONTACT THEREWITH, HEATING AND BENDING THE GLASS SHEET TO THE DESIRED CURVATURE, THEN REMOVING PART OF THE ELECTRICALLY CONDUCTIVE COATING, AND FINALLY LAMINATING SAID BENT SHEET WITH A SECOND SIMILARLY BENT GLASS SHEET AND AN INTERPOSED LAYER OF THERMOPLASTIC MATERIAL TO FORM A COMPOSITE STRUCTURE.
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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |