US2521845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making composite glass and metal articles
Assignee: Individual
•
Filing: 1944-07-26
•
Granted: 1950-09-12
•
Expires: 1964-07-26
Abstract
No abstract record available.
Inventors
- 👤 Waylande C Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:02
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/06; C23; C23D; C23D5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US273371A
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GB189900522A
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US1556364A
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US1646468A
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US1603552A
Cited
US1654401A
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US1960121A
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US2071294A
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US2073254A
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US2357399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |