US2457877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooking unit
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1942-11-23
•
Granted: 1949-01-04
•
Expires: 1962-11-23
Abstract
No abstract record available.
Inventors
- 👤 Doner Halbert Creston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:14
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/12; F24C7/00; F24C7/08; F24C7/082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1669802A
Cited
US1378566A
Cited
US1800863A
Cited
US1839128A
Cited
US1820849A
Cited
US2074985A
Cited
US2182682A
Cited
US2266901A
Cited
US2217804A
Cited
US2259519A
Cited
US2257580A
Cited
US2251582A
Cited
US2262319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |