Patent FR824549A successfully refreshed from Google Patents.
US3157482A
Expired / Lapsed
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Method of using layered glassworking tool
Assignee: Corning Glass Works
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Filing: 1962-02-14
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Granted: 1964-11-17
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Expires: 1982-02-14
Abstract
No abstract record available.
Inventors
- 👤 Anthony P Nero
- 👤 James W Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:01
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/167; C03B5/1672; C03B5/1675; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12861; Y10T428/12875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF PRODUCING GLASS COMPRISING THE STEP OF BRINGING THE GLASS, IN A MOLTEN STATE, INTO CONTACT WITH A GLASSWORKING TOOL CHARACTERIZED BY A MOLYBDENUM BODY PORTION, A PLATINUM SURFACE CLADDING, AND A DIFFUSIBLE CARBON LEVEL IN THE MOLYBDENUM BODY PORTION AND AT THE MOLYBDENUM-PLATINUM INTERFACE OF LESS THAN 0.1%.
Claim 2
Independent Claim
51 words
A METHOD OF PRODUCING GLASS COMPRISING THE STEP OF BRINGING THE GLASS, IN A MOLTEN STATE, INTO CONTACT WITH A GLASSWORKING TOOL CHARACTERIZED BY A MOLYBDENUM BODY PORTION, A PLATINUM SURFACE CLADDING, AND A DIFFUSIBLE CARBON LEVEL IN THE MOLYBDENUM BODY PORTION AND AT THE MOLYBDENUM-PLATINUM INTERFACE OF LESS THAN 0.1%.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |