US2736334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twin-arch pipe line span
Assignee: Individual
•
Filing: 1951-11-23
•
Granted: 1956-02-28
•
Expires: 1971-11-23
Abstract
No abstract record available.
Inventors
- 👤 Walter E Riley
- 👤 Franklin J Foltz
- 👤 Bennett Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:04
CPC Classifications
F; F16; F16L; F16L3/00; Y; Y10; Y10T; Y10T137/00; Y10T137/402
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) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |