US2520133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oven rack
Assignee: Individual
•
Filing: 1947-05-09
•
Granted: 1950-08-29
•
Expires: 1967-05-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Donovan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:57
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US217511A
Cited
US683331A
Cited
US1045940A
Cited
US1041164A
Cited
US1690946A
Cited
US1710770A
Cited
US1737050A
Cited
US2062814A
Cited
US2287309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |