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US3756799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for beam heating of glass
Assignee: Schott AG
•
Filing: 1970-10-13
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Granted: 1973-09-04
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Expires: 1990-10-13
Abstract
Abstract A FINELY DIVIDED SUBSTNCE, SUCH AS A GLASS POWDER OR CRYSTALLINE POWDER, IS TRICKLED FROM AN ELEVATED POSITION INTO A HORIZONTALLY DIRECTED AND HORIZONTALLY FLATTENED LASER BEAM HAVING A WAVE LENGTH GRATER THAN 2.5 $M., PREFERABLY 10.6 $M. THE LASER BEAM MELTS THE POWDER AND THE MOLTEN MATERIAL IS DEPOSITED ON A SLOWLY DOWNWARDLY MOVING BASE CAUSING THE FORMATION OF A ROD OF GLASS OR CRYSTAL ON SAID BASE.
Inventors
- 👤 N Neuroth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
C; C03; C03B; C03B19/00; C03B19/01; C03B29/00; C03B5/00; C03B5/16; C03B5/235; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 0
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |