US2439754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burn-off method
Assignee: OI Glass Inc
•
Filing: 1943-05-01
•
Granted: 1948-04-13
•
Expires: 1963-05-01
Abstract
No abstract record available.
Inventors
- 👤 Harold R Schutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:40
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/08; C03B33/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1577538A
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FR735412A
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US1920528A
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US2239627A
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US2270152A
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US2215980A
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GB541755A
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US2334111A
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US2334001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-13 | 1951-10-13 | 1952-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-13 | 1955-10-13 | 1956-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-13 | 1959-10-13 | 1960-04-13 | $7700.00 | Window Closed / Lapsed |