US2365257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Change maker
Assignee: Individual
•
Filing: 1943-01-29
•
Granted: 1944-12-19
•
Expires: 1963-01-29
Abstract
No abstract record available.
Inventors
- 👤 Charles G Emerson
- 👤 Lee R Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
G; G07; G07F; G07F5/00; G07F5/24; G07D; G07D1/00; G07D1/02
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) | 1947-12-19 | 1948-06-19 | 1948-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-19 | 1952-06-19 | 1952-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-19 | 1956-06-19 | 1956-12-19 | $7700.00 | Window Closed / Lapsed |