US3343935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molten additions of colorants in a glass furnace forehearth
Assignee: OI Glass Inc
•
Filing: 1962-12-06
•
Granted: 1967-09-26
•
Expires: 1982-12-06
Abstract
No abstract record available.
Inventors
- 👤 George E Keefer
- 👤 Pei Yu Kun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:52
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN A METHOD OF MAKING A COLORED GLASS, COMPRISING THE STEPS OF FLOWING A STREAM OF MOLTEN CARRIER GLASS HORIZONTALLY THROUGH A FOREHEARTH, MELTING A COLORANT ENRICHED ADDITIVE AT A LOCATION ABOVE THE FOREHEARTH STREAM, GRAVITATIONALLY FLOWING THE MOLTEN ADDITIVE VERTICALLY AT A SELECTED FLOW RATE ONTO THE SURFACE OF THE FOREHEARTH STREAM, AND MOVING THE GRAVITATIONALLY FLOWING, MOLTEN ADDITIVE ACROSS THE WIDTH OF THE FOREHEARTH FIRST IN ONE DIRECTION TRANSVERSELY OF THE FOREHEARTH AND THEN IN THE OPPOSITE
Claim 2
Dependent Claim
79 words
IN A METHOD OF MAKING A COLORED GLASS, COMPRISING THE STEPS OF FLOWING A STREAM OF MOLTEN CARRIER GLASS HORIZONTALLY THROUGH A FOREHEARTH, MELTING A COLORANT ENRICHED ADDITIVE AT A LOCATION ABOVE THE FOREHEARTH STREAM, GRAVITATIONALLY FLOWING THE MOLTEN ADDITIVE VERTICALLY AT A SELECTED FLOW RATE ONTO THE SURFACE OF THE FOREHEARTH STREAM, AND MOVING THE GRAVITATIONALLY FLOWING, MOLTEN ADDITIVE ACROSS THE WIDTH OF THE FOREHEARTH FIRST IN ONE DIRECTION TRANSVERSELY OF THE FOREHEARTH AND THEN IN THE OPPOSITE
References Cited (Backward Citations)
US1838530A
Cited
US2363954A
Cited
US2577213A
Cited
US2641454A
Cited
US2746729A
Cited
US3024121A
Cited
US3224857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |