US2695446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making tube-to-flange connection
Assignee: METALLSCHLAUCHFABRIK AG
•
Filing: 1951-06-12
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Granted: 1954-11-30
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 Meyer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:09
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/147; B; B21; B21D; B21D39/00; B21D39/06; F16L23/00; F16L23/02; F16L23/024; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877; Y10T29/49908; Y10T29/49938; Y10T29/4994
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) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |