US2816575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for laying a pipe line under a right-of-way
Assignee: Individual
•
Filing: 1953-05-11
•
Granted: 1957-12-17
•
Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 William S Stokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
F; F16; F16L; F16L7/00; F16L7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1466592A
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US1834434A
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US1991455A
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US1852225A
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US2027961A
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US2399544A
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US2520046A
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US2504478A
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US2551867A
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US2504462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |