US2433749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draft regulator
Assignee: Individual
•
Filing: 1943-12-20
•
Granted: 1947-12-30
•
Expires: 1963-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward A Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:16
CPC Classifications
F; F23; F23L; F23L11/00; F23L11/02; F23L13/00; F23L13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE212306C
Cited
US591317A
Cited
US1848850A
Cited
US2182625A
Cited
US1783418A
Cited
US2004948A
Cited
US2269932A
Cited
US2346740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |