Patent US2515545A successfully refreshed from Google Patents.
US2515545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for controlling the combustion rate and composition of the combustion gases in the burning of solid fuel
Assignee: CURA Patents Ltd
•
Filing: 1943-10-27
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Granted: 1950-07-18
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Expires: 1963-10-27
Abstract
No abstract record available.
Inventors
- 👤 Bangham Donald Hugh
- 👤 Bennett John Godolphin
- 👤 Mayorcas Reginald
- 👤 Pirani Marcello
- 👤 Thring Meredith Wooldridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:53
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/003
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |