Patent US2987011A successfully refreshed from Google Patents.
Patent US2634760A successfully refreshed from Google Patents.
US2634760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Longitudinally seamed pipe
Assignee: —
•
Filing: —
•
Granted: 1953-04-14
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Expires: 1970-04-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:18
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/02; F16L9/17; F23; F23J; F23J13/00; F23J13/04; F16L37/00; F16L37/08; F16L37/084; F16L37/098; F23J2213/00; F23J2213/20; F23J2213/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |