US2497787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner assembly
Assignee: Roberts & Mander Corp
•
Filing: 1945-05-01
•
Granted: 1950-02-14
•
Expires: 1965-05-01
Abstract
No abstract record available.
Inventors
- 👤 Henry S Minster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:11
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/08; F24C3/085; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/06; F24C3/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE115182C
Cited
GB190104546A
Cited
US927825A
Cited
FR417359A
Cited
US1957442A
Cited
US2232482A
Cited
US2396800A
Cited
US2411313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |