Patent US6214045B1 successfully refreshed from Google Patents.
US2817547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joint for connecting pipings, especially for scaffolding structures
Assignee: Individual
•
Filing: 1953-11-13
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Granted: 1957-12-24
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Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Canepa Agostino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:30
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/24; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/344; Y10T403/70; Y10T403/7041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190920648A
Cited
US1150781A
Cited
US1819172A
Cited
GB421871A
Cited
US2128720A
Cited
GB627989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |