US2250710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flare
Assignee: Individual
•
Filing: 1937-03-10
•
Granted: 1941-07-29
•
Expires: 1957-03-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Hutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:56
CPC Classifications
F; F21; F21L; F21L17/00; F23; F23D; F23D3/00; F23D2900/00; F23D2900/31006; Y; Y10; Y10S; Y10S206/00; Y10S206/803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-07-28 | 1945-01-27 | 1945-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-28 | 1949-01-27 | 1949-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-28 | 1953-01-27 | 1953-07-29 | $7700.00 | Window Closed / Lapsed |