US2745480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic radiant broiler burner
Assignee: Geo D Roper Corp
•
Filing: 1951-07-19
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Granted: 1956-05-15
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Expires: 1971-07-19
Abstract
No abstract record available.
Inventors
- 👤 Albert H Crone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:49
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/24; F23; F23D; F23D14/00; F23D14/12; F23D14/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |