US2697676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for continuous mica application for bent windshields
Assignee: PPG Industries Inc
•
Filing: 1951-09-29
•
Granted: 1954-12-21
•
Expires: 1971-09-29
Abstract
No abstract record available.
Inventors
- 👤 Lloyd V Black
- 👤 Florian V Atkeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:55
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10981; B32B17/10889; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/068; B65G49/069; C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B40/00; C03B40/02; C03B40/033; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE METHOD OF FORMING BENT LAMINATED GLASS SHEETS COMPRISING THE STEPS OF, SUCCESSIVELY PASSING MATCHED PAIRS OF GLASS SHEETS THROUGH A WASHING AND DRYING APPARATUS FOR EFFECTIVE REMOVAL OF ALL FOREIGN MATTER AND ADSORBED WATER FROM AT LEAST ONE SURFACE OF EACH SHEET, APPLYING A UNIFORM COATING OF FINELY DIVIDED MICA TO AT LEAST ONE CLEANED SURFACE OF EACH PAIR OF SHEETS, ASSEMBLING THE SHEETS IN PAIRS WITH THE CLEANED SURFACES IN OPPOSING RELATION, PASSING THE ASSEMBLED SHEETS THROUGH A HEATED PASSAGE AND UPON SUITABLE MOLDS FOR BENDING THE PAIRS OF GLASS SHEETS TO BE DESIRED CONTOUR, SEPARATING THE SHEETS AND INSERTING A PLASTIC INNER LAYER WITHOUT REMOVING THE MICA FROM THE COATED SURFACE OF ONE OF THE SHEETS, THEN RE-ASSEMBLING AND TREATING THESE SHEETS IN AN AUTO-CLAVE IN THE USUAL MANNER.
Claim 2
Independent Claim
132 words
THE METHOD OF FORMING BENT LAMINATED GLASS SHEETS COMPRISING THE STEPS OF, SUCCESSIVELY PASSING MATCHED PAIRS OF GLASS SHEETS THROUGH A WASHING AND DRYING APPARATUS FOR EFFECTIVE REMOVAL OF ALL FOREIGN MATTER AND ADSORBED WATER FROM AT LEAST ONE SURFACE OF EACH SHEET, APPLYING A UNIFORM COATING OF FINELY DIVIDED MICA TO AT LEAST ONE CLEANED SURFACE OF EACH PAIR OF SHEETS, ASSEMBLING THE SHEETS IN PAIRS WITH THE CLEANED SURFACES IN OPPOSING RELATION, PASSING THE ASSEMBLED SHEETS THROUGH A HEATED PASSAGE AND UPON SUITABLE MOLDS FOR BENDING THE PAIRS OF GLASS SHEETS TO BE DESIRED CONTOUR, SEPARATING THE SHEETS AND INSERTING A PLASTIC INNER LAYER WITHOUT REMOVING THE MICA FROM THE COATED SURFACE OF ONE OF THE SHEETS, THEN RE-ASSEMBLING AND TREATING THESE SHEETS IN AN AUTO-CLAVE IN THE USUAL MANNER.
References Cited (Backward Citations)
US199583A
Cited
US1455544A
Cited
US633694A
Cited
US685512A
Cited
US1068733A
Cited
US1494157A
Cited
US2143479A
Cited
US2196470A
Cited
US2205003A
Cited
US2256024A
Cited
US2392770A
Cited
US2377849A
Cited
US2378016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |