US3490792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick disconnect
Assignee: Welding and Steel Fabrication Co Inc
•
Filing: 1968-08-08
•
Granted: 1970-01-20
•
Expires: 1988-08-08
Abstract
No abstract record available.
Inventors
- 👤 Henry John Piegza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:03
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/002; F16L37/08; F16L37/10; F16L37/113; F16L51/00; F16L51/02; F16L51/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1185049A
Cited
US1385157A
Cited
US1853411A
Cited
US2317729A
Cited
US2788498A
Cited
GB854763A
Cited
US2916143A
Cited
US3298680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |