US1571372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe-laying device
Assignee: Individual
•
Filing: 1924-09-19
•
Granted: 1926-02-02
•
Expires: 1944-09-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Dalzell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:37
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/10; Y; Y10; Y10S; Y10S414/00; Y10S414/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-02-01 | 1929-08-03 | 1930-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-01 | 1933-08-03 | 1934-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-01 | 1937-08-03 | 1938-02-02 | $7700.00 | Window Closed / Lapsed |