US2450790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner
Assignee: Individual
•
Filing: 1943-05-27
•
Granted: 1948-10-05
•
Expires: 1963-05-27
Abstract
No abstract record available.
Inventors
- 👤 Greaves Albert Horace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:32
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/62; F23D14/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB488281A
Cited
US1313694A
Cited
US669302A
Cited
GB190200438A
Cited
US738433A
Cited
US1112862A
Cited
US1242490A
Cited
US1428400A
Cited
GB192780A
Cited
FR815408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |