US2127172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fcknace bukner
Assignee: —
•
Filing: —
•
Granted: 1938-08-16
•
Expires: 1955-08-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:22
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/02; F23N1/025; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7759; Y10T137/8593; Y10T137/86928
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) | 1941-08-15 | 1942-02-14 | 1942-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-08-15 | 1946-02-14 | 1946-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-08-15 | 1950-02-14 | 1950-08-16 | $7700.00 | Window Closed / Lapsed |