US2474038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite metal
Assignee: Metals and Controls Corp
•
Filing: 1945-03-03
•
Granted: 1949-06-21
•
Expires: 1965-03-03
Abstract
No abstract record available.
Inventors
- 👤 Ermand H Davignon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/018; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/937; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12868; Y10T428/12903; Y10T428/1291; Y10T428/12917; Y10T428/12951; Y10T428/12986
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |