US2829700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a tube structure for electrical applications
Assignee: Individual
•
Filing: 1953-08-25
•
Granted: 1958-04-08
•
Expires: 1973-08-25
Abstract
No abstract record available.
Inventors
- 👤 William F Stahl
- 👤 Jr Hugh T Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:55
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/84; B29C53/845; B29C53/56; B29C53/58; B29C53/581; B29C70/00; B29C70/04; B29C70/28; B29C70/54; B29C70/542; B29K; B29K2995/00; B29K2995/0003; B29L; B29L2009/00; B29L2023/00; B29L2023/22; B29L2023/225
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) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |