Patent US1737686A successfully refreshed from Google Patents.
US1737686A
Expired / Lapsed
US
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Method of producing heat-absorbing glasses and batches therefor
Assignee: Corning Glass Works
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Filing: 1928-05-24
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Granted: 1929-12-03
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Expires: 1948-05-24
Abstract
No abstract record available.
Inventors
- 👤 Walter H Rising
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:04
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/08; C03C4/082; C03C3/00; C03C3/04; C03C3/076; C03C3/078; C25; C25B; C25B15/00
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) | 1932-12-02 | 1933-06-03 | 1933-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-12-02 | 1937-06-03 | 1937-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-12-02 | 1941-06-03 | 1941-12-03 | $7700.00 | Window Closed / Lapsed |