Patent US2679872A successfully refreshed from Google Patents.
US2679872A
Expired / Lapsed
US
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Clamp for assembly of temporary structures
Assignee: Rapid Metal Developments Ltd
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Filing: 1950-09-16
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Granted: 1954-06-01
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Expires: 1970-09-16
Abstract
No abstract record available.
Inventors
- 👤 Sutcliffe Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:22
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/04; E04G17/042; E04G9/00; E04G9/02; E04G2009/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |