Patent US2859052A successfully refreshed from Google Patents.
US2859052A
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Coupling with flange aligning means
Assignee: AT&T Inc
•
Filing: 1954-11-17
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Granted: 1958-11-04
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Expires: 1974-11-17
Abstract
No abstract record available.
Inventors
- 👤 Corbeels Theophile
- 👤 Robert N Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:52
CPC Classifications
B; B21; B21D; B21D41/00; F; F16; F16L; F16L23/00; F16L23/006; F16L23/02; F16L23/032; F16L23/16; F16L23/18; H; H01; H01P; H01P1/00; H01P1/04; H01P1/042
Claims Analysis
Total Claims: 0
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US1703018A
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US2384386A
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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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |