US3530564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing looseness in wires of flexible pipe
Assignee: Youngstown Sheet and Tube Co
•
Filing: 1968-02-23
•
Granted: 1970-09-29
•
Expires: 1988-02-23
Abstract
No abstract record available.
Inventors
- 👤 Roy H Cullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:36
CPC Classifications
B; B21; B21F; B21F17/00; F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/081; F16L11/083; F16L11/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49826; Y10T29/49838; Y10T29/49863; Y10T29/49947
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US963800A
Cited
US1899343A
Cited
US2303187A
Cited
US2756484A
Cited
US3004779A
Cited
US3027631A
Cited
US3297343A
Cited
US3353255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |