US3223503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of flat glass
Assignee: Pilkington Group Ltd
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Filing: 1960-08-10
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Granted: 1965-12-14
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Expires: 1980-08-10
Abstract
No abstract record available.
Inventors
- 👤 Barradell-Smith Richard
- 👤 Silverwood Frederick William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:29
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/04; C03B18/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN THE MANUFACTURE FROM GLASS FORMING SUBSTANCES OF FLAT MATERIAL IN RIBBON FORM DURING WHICH THE MATERIAL IN MOLTEN RIBBON FORM IS IN CONTACT WITH A BATH OF MOLTEN METAL, WHILE THE RIBBON IS BEING ADVANCED LENGTHWISE ALONG SAID BATH, THE WIDTH OF THE BATH SURFACE BEING GREATER THAN THE WIDTH OF THE RIBBON AT LEAST IN LOCALITIES WHERE THE RIBBON IS DEFORMABLE, AND THE LENGTH OF THE DEFORMABLE RIBBON IN SAID BATH OF MOLTEN METAL BEING SUFFICIENTLY GREAT TO TEND TO CAUSE SAID RIBBON IN SAID LOCALITIES TO DRIFT EDGEWISE OF ITS INTENDED PATH, THE STEP OF CREATING SURFACE MOVEMENT OF THE MOLTEN METAL OF HTE BATH ACROSS THE INTENDED PATH OF THE RIBBON AT LEAST IN SAID LOCALITIES WHERE THERE IS SAID DRIFTING TENDENCY, SO THAT TRANSVERSE SURFACE MOVEMENT OF HTE MOLTEN METAL IN CONTACT WITH THE UNDERFACE OF THE RIBBON ACTS TO MAINTAIN THE RIBBON IN ITS INTENDED PATHS AS IT IS ADVANCED ALONG THE BATH.
Claim 2
Dependent Claim
159 words
IN THE MANUFACTURE FROM GLASS FORMING SUBSTANCES OF FLAT MATERIAL IN RIBBON FORM DURING WHICH THE MATERIAL IN MOLTEN RIBBON FORM IS IN CONTACT WITH A BATH OF MOLTEN METAL, WHILE THE RIBBON IS BEING ADVANCED LENGTHWISE ALONG SAID BATH, THE WIDTH OF THE BATH SURFACE BEING GREATER THAN THE WIDTH OF THE RIBBON AT LEAST IN LOCALITIES WHERE THE RIBBON IS DEFORMABLE, AND THE LENGTH OF THE DEFORMABLE RIBBON IN SAID BATH OF MOLTEN METAL BEING SUFFICIENTLY GREAT TO TEND TO CAUSE SAID RIBBON IN SAID LOCALITIES TO DRIFT EDGEWISE OF ITS INTENDED PATH, THE STEP OF CREATING SURFACE MOVEMENT OF THE MOLTEN METAL OF HTE BATH ACROSS THE INTENDED PATH OF THE RIBBON AT LEAST IN SAID LOCALITIES WHERE THERE IS SAID DRIFTING TENDENCY, SO THAT TRANSVERSE SURFACE MOVEMENT OF HTE MOLTEN METAL IN CONTACT WITH THE UNDERFACE OF THE RIBBON ACTS TO MAINTAIN THE RIBBON IN ITS INTENDED PATHS AS IT IS ADVANCED ALONG THE BATH.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |