US2600254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall treatment of tubing
Assignee: Individual
•
Filing: 1947-03-20
•
Granted: 1952-06-10
•
Expires: 1967-03-20
Abstract
No abstract record available.
Inventors
- 👤 Lysobey John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
B; B41; B41F; B41F17/00; B41F17/08; B41F17/10; B26; B26F; B26F1/00; B26F1/0015; B26F1/0038; B26F1/0061; B26F1/0069; B29; B29C; B29C31/00; B29C31/002; B29C48/00; B29C48/25; B29C53/00; B29C53/80; B29C57/00; B29C57/10; B29C59/00; B29C59/02; B29C59/04; B29C59/043; B29C67/00; B29C67/0014; B29C48/001; B29C48/0022; B29C48/03; B29C48/09; B29C48/10; B29C48/13; Y; Y10; Y10S; Y10S425/00; Y10S425/033; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116; Y10T83/00; Y10T83/384; Y10T83/929; Y10T83/9309
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |