US3057175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing colorant in glass furnace forehearth
Assignee: OI Glass Inc
•
Filing: 1956-04-17
•
Granted: 1962-10-09
•
Expires: 1976-04-17
Abstract
No abstract record available.
Inventors
- 👤 Robert R Rough
- 👤 Arthur B Swain Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:30
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/173; C03B5/18; C03B5/187; C03B5/1875
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2817191A
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US2888781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |