US3506040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Armored hose
Assignee: United States Steel Corp
•
Filing: 1968-11-14
•
Granted: 1970-04-14
•
Expires: 1988-11-14
Abstract
No abstract record available.
Inventors
- 👤 Walter O Everling
- 👤 John A Frey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:35
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/081; F16L11/083; F16L11/14; F16L11/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2969812A
Cited
US3212528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |