US2480369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of multilayer cylinder for high-pressure vessels
Assignee: AO Smith Corp
•
Filing: 1941-11-07
•
Granted: 1949-08-30
•
Expires: 1961-11-07
Abstract
No abstract record available.
Inventors
- 👤 Jasper Thomas Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:34
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; Y; Y10; Y10S; Y10S29/00; Y10S29/042; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49879
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) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |