US3224860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass forming mold
Assignee: Individual
•
Filing: 1962-05-21
•
Granted: 1965-12-21
•
Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Stinnes Hanns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:05
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/30; C03B9/38; C03B9/3875; C03B11/00; C03B11/12; C03B11/125; C03B11/127; C03B9/3825
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A MOLD FOR SHAPING AND FOR WITHDRAWING HEAT FROM MOLTEN VITREOUS MATERIAL, COMPRISING WALL MEANS HAVING A FIRST SURFACE PORTION WHICH IS ADAPTED TO BE PLACED IN HEAT RECEIVING CONTACT WITH MOLTEN VITREOUS MATERIAL AND A HEAT RADIATING SECOND SURFACE PORTION WHICH IS EXPOSED TO COOLANT WHEN THE FIRST SURFACE PORTION IS IN CONTACT WITH MOLTEN VITREOUS MATERIAL, ONE OF SAID SURFACE PORTIONS SUBSTANTIALLY VITREOUS MATERIAL, ONE OF SAID SURFACE PORTIONS SUBSTANTIALLY SURROUNDING THE OTHER SAID MOLD DEFINING AT LEAST ONE SEALABLE INTERNAL CHAMBER INTERMEDIATE SAID SURFACE PORTIONS; AND A SUBSTANCE WITH GOOD HEAT CONDUCTING CHARACTERISTICS SUBSTANTIALLY FILLING AND FULLY ENCLOSED IN SAID CHAMBER, SAID SUBSTANCE HAVING A MELTING POINT BELOW AND A BOILING POINT ABOVE 500*C. SO THAT SAID SUBSTANCE IS LIQUID AT TEMPERATURES TO WHICH THE MOLD IS SUBJECTED WHEN SAID FIRST SURFACE PORTION IS IN CONTACT WITH MOLTEN VITREOUS MATERIAL AND CONDUCTING HEAT FROM SAID FIRST SURFACE TO SAID SECOND SURFACE WHEN MOLTEN VITREOUS MATERIAL IS IN CONTACT WITH SAID FIRST SURFACE.
Claim 2
Dependent Claim
165 words
A MOLD FOR SHAPING AND FOR WITHDRAWING HEAT FROM MOLTEN VITREOUS MATERIAL, COMPRISING WALL MEANS HAVING A FIRST SURFACE PORTION WHICH IS ADAPTED TO BE PLACED IN HEAT RECEIVING CONTACT WITH MOLTEN VITREOUS MATERIAL AND A HEAT RADIATING SECOND SURFACE PORTION WHICH IS EXPOSED TO COOLANT WHEN THE FIRST SURFACE PORTION IS IN CONTACT WITH MOLTEN VITREOUS MATERIAL, ONE OF SAID SURFACE PORTIONS SUBSTANTIALLY VITREOUS MATERIAL, ONE OF SAID SURFACE PORTIONS SUBSTANTIALLY SURROUNDING THE OTHER SAID MOLD DEFINING AT LEAST ONE SEALABLE INTERNAL CHAMBER INTERMEDIATE SAID SURFACE PORTIONS; AND A SUBSTANCE WITH GOOD HEAT CONDUCTING CHARACTERISTICS SUBSTANTIALLY FILLING AND FULLY ENCLOSED IN SAID CHAMBER, SAID SUBSTANCE HAVING A MELTING POINT BELOW AND A BOILING POINT ABOVE 500*C. SO THAT SAID SUBSTANCE IS LIQUID AT TEMPERATURES TO WHICH THE MOLD IS SUBJECTED WHEN SAID FIRST SURFACE PORTION IS IN CONTACT WITH MOLTEN VITREOUS MATERIAL AND CONDUCTING HEAT FROM SAID FIRST SURFACE TO SAID SECOND SURFACE WHEN MOLTEN VITREOUS MATERIAL IS IN CONTACT WITH SAID FIRST SURFACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |