US2718684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipelaying method and machine
Assignee: Individual
•
Filing: 1951-03-05
•
Granted: 1955-09-27
•
Expires: 1971-03-05
Abstract
No abstract record available.
Inventors
- 👤 Bjorksten Johan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:32
CPC Classifications
E; E03; E03F; E03F3/00; E03F3/06; F; F16; F16L; F16L1/00; F16L1/024; F16L1/028; F16L1/038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1309878A
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US2519375A
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US2520199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |