US2478253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination oven unit
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1942-12-02
•
Granted: 1949-08-09
•
Expires: 1962-12-02
Abstract
No abstract record available.
Inventors
- 👤 Doner Halbert Creston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:54
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US529148A
Cited
US1765247A
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US1963089A
Cited
GB451702A
Cited
US2198436A
Cited
US2245220A
Cited
US2234596A
Cited
US2340354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |