Patent US3420644A successfully refreshed from Google Patents.
US3420644A
Expired / Lapsed
US
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Method for molding of glass and ceramic materials
Assignee: Howmet Turbine Components Corp
•
Filing: 1964-10-19
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Granted: 1969-01-07
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Nick G Lirones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:02
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/28; C03; C03B; C03B19/00; C03B19/02; C04B33/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US276924A
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US1229324A
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US2401760A
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US2441695A
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US2679080A
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US2628394A
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US3241200A
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US3266106A
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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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |