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Patent US2873556A successfully refreshed from Google Patents.
US2873556A
Expired / Lapsed
US
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Process of making armored glass
Assignee: Compagnie de Saint Gobain SA
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Filing: 1954-06-17
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Granted: 1959-02-17
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Expires: 1974-06-17
Abstract
No abstract record available.
Inventors
- 👤 Hainke Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:14
CPC Classifications
C; C03; C03B; C03B13/00; C03B13/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US831640A
Cited
US912950A
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US1824365A
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US1809863A
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US1905006A
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US1837455A
Cited
US1938540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |