Patent US2948170A successfully refreshed from Google Patents.
US2948170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making a joint between a metal tube and an object engageable therein
Assignee: Individual
•
Filing: 1957-09-04
•
Granted: 1960-08-09
•
Expires: 1977-09-04
Abstract
No abstract record available.
Inventors
- 👤 Kemp Cyril Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:50
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
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) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |