US2326059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass having an expansion lower than that of silica
Assignee: Corning Glass Works
•
Filing: 1939-04-22
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Granted: 1943-08-03
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Expires: 1959-04-22
Abstract
No abstract record available.
Inventors
- 👤 Martin E Nordberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:45
CPC Classifications
C; C03; C03B; C03B19/00; C03B19/14; C03B19/1453; C03B19/1415; C03B19/1484; C03B19/1492; C03C; C03C3/00; C03C3/04; C03C3/06; C03C3/076; C03C3/083; C03C4/00; C03C4/005; C03B2201/00; C03B2201/06; C03B2201/30; C03B2201/40; C03B2201/42; C03B2207/00; C03B2207/80; C03B2207/85; C03B2207/87; C03B2207/90; Y; Y10; Y10S; Y10S425/00; Y10S425/121
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) | 1946-08-02 | 1947-02-01 | 1947-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-02 | 1951-02-01 | 1951-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-02 | 1955-02-01 | 1955-08-03 | $7700.00 | Window Closed / Lapsed |