Patent US3268321A successfully refreshed from Google Patents.
US3268321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming solid glassware in a carbon die
Assignee: OI Glass Inc
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Filing: 1963-02-25
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Granted: 1966-08-23
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Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 George C Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:15
CPC Classifications
C; C03; C03B; C03B15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
APPARATUS FOR PRECISION FORMING OF GLASS ARTICLES COMPRISING AN ELONGATED CARBON DIE HAVING A PRECISION CUT OPENING THERETHROUGH, MEANS FOR FORCING MOLTEN GLASS INTO ONE END OF SAID DIE OPENING WITH A PREDETERMINED PRESSURE AND MEANS COUNTED IN THERMAL TRANSFER RELATIONSHIP WITH SAID DIE FOR COOLING SAID DIE AN AMOUNT SUFFICIENT TO MAKE THE GLASS CONTAINED THEREIN RIGID PRIOR TO EMERGENCE FROM SAID DIE.
Claim 2
Dependent Claim
64 words
APPARATUS FOR PRECISION FORMING OF GLASS ARTICLES COMPRISING AN ELONGATED CARBON DIE HAVING A PRECISION CUT OPENING THERETHROUGH, MEANS FOR FORCING MOLTEN GLASS INTO ONE END OF SAID DIE OPENING WITH A PREDETERMINED PRESSURE AND MEANS COUNTED IN THERMAL TRANSFER RELATIONSHIP WITH SAID DIE FOR COOLING SAID DIE AN AMOUNT SUFFICIENT TO MAKE THE GLASS CONTAINED THEREIN RIGID PRIOR TO EMERGENCE FROM SAID DIE.
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |