US2454340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed transmitting mechanism
Assignee: Kearfott Co Inc
•
Filing: 1945-07-18
•
Granted: 1948-11-23
•
Expires: 1965-07-18
Abstract
No abstract record available.
Inventors
- 👤 Wladimir A Reichel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:14
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/50; F16J15/52; F16J15/525; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1836; Y10T74/18384
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702762A
Cited
US2099385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-23 | 1952-05-24 | 1952-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-23 | 1956-05-24 | 1956-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-23 | 1960-05-24 | 1960-11-23 | $7700.00 | Window Closed / Lapsed |