Patent US2329057A successfully refreshed from Google Patents.
US2329057A
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US
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Tempered hollow glass article
Assignee: Corning Glass Works
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Filing: 1941-01-29
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Granted: 1943-09-07
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Expires: 1961-01-29
Abstract
No abstract record available.
Inventors
- 👤 Harry R Kiehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:41
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/04; C03B27/06; C03B27/065; A; A47; A47G; A47G19/00; A47G19/22; A47G19/2205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-09-06 | 1947-03-08 | 1947-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-06 | 1951-03-08 | 1951-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-06 | 1955-03-08 | 1955-09-07 | $7700.00 | Window Closed / Lapsed |