US3605200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp for fastening tubular elements
Assignee: BOWTHORPE INTERNATIONAL BV 154 SCHIEDAMSE VEST 3011 BH ROTTERHAM NETHERLANDS A Co OF NETHERLANDS
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Filing: 1969-11-21
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Granted: 1971-09-20
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Expires: 1989-11-21
Abstract
Abstract A SINGLE-PIECE RESILIENT CLAMP FOR FASTENING A SLEEVE OR COLLAR ON A TUBULAR PIPE AND SHAPED LIKE A U. EACH BRANCH OF THE CLAMP HAS AN INWARDLY PROJECTING, CENTERSLOTTED, TOOTHED EXTENSION, AS WELL AS AN INWARDLY PROJECTING NON-TOOTHED EXTENSION. THE OUTER SURFACE OF EACH BRANCH IS CORRUGATED SO AS TO ENABLE A COMPRESSION TOOL SAFELY TO CAUSE THE ENGAGEMENT OF THE TOOTHED EXTENSIONS WITH EACH OTHER. CIRCUMFERENTIAL KNURLING ON THE CLAMP''S INNER SURFACE ENSURES THE POSITIVE FASTENING THEREOF ON THE ELEMENTS TO BE TIGHTENED.
Inventors
- 👤 Michele Vallinotto
- 👤 Luigi Villata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:50
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/08; F16L3/12; F16L33/00; F16L33/02; F16L33/035; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/1482
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |