US3587956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting glass plates
Assignee: Pilkington North America Inc
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Filing: 1969-05-02
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Granted: 1971-06-28
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Expires: 1989-05-02
Abstract
Abstract A METHOD AND APPARATUS FOR CUTTING GLASS PLATES BY APPLYING HEAT ALONG THE DESIED LINE OF CUT FROM A SOURCE WHICH IS SPACED FROM THE SURFACE OF THE PLATE. RESISTANCE-TYPE HEATING APPARATUS FOR APPLYING RADIANT HEAT, AND A HOT AIR UNIT FOR APPLYING CONVECTED HEAT ARE PROVIDED.
Inventors
- 👤 Waldemar W Oelke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:51
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/09; Y; Y10; Y10S; Y10S65/00; Y10S65/04; Y10T; Y10T225/00; Y10T225/30; Y10T225/304
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |