Patent US4075369A successfully refreshed from Google Patents.
Patent US3309744A successfully refreshed from Google Patents.
US3309744A
Expired / Lapsed
US
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Device for anchoring rods
Assignee: Individual
•
Filing: 1964-01-20
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Granted: 1967-03-21
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Sironi Virginio
- 👤 Albertelli Davide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:32
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08; E04C5/12; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3909; Y10T403/00; Y10T403/71; Y10T403/7129; Y10T403/7141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN AN ASSEMBLY FOR PRESTRESSING CONCRETE BEAMS OR THE LIKE, AN INNER BODY OF SUBSTANTIALLY FRUSTOCONICAL CONFIGURATION, A PLURALITY OF ELONGATED TENSION ELEMENTS RESPECTIVELY HAVING BENT PORTIONS CONFORMING TO THE CONFIGURATION OF THE EXTERIOR SURFACE OF SAID BODY AND DISTRIBUTED ABOUT AND ENGAGING SAID EXTERIOR SURFACE OF SAID BODY, CLAMPING MEANS CLAMPING SAID ELEMENTS AT THEIR BENT PORTIONS TO SAID INNER BODY, CONNECTING MEANS RELEASABLY CONNECTING SAID CLAMPING MEANS DIRECTLY TO SAID INNER
Claim 2
Dependent Claim
73 words
IN AN ASSEMBLY FOR PRESTRESSING CONCRETE BEAMS OR THE LIKE, AN INNER BODY OF SUBSTANTIALLY FRUSTOCONICAL CONFIGURATION, A PLURALITY OF ELONGATED TENSION ELEMENTS RESPECTIVELY HAVING BENT PORTIONS CONFORMING TO THE CONFIGURATION OF THE EXTERIOR SURFACE OF SAID BODY AND DISTRIBUTED ABOUT AND ENGAGING SAID EXTERIOR SURFACE OF SAID BODY, CLAMPING MEANS CLAMPING SAID ELEMENTS AT THEIR BENT PORTIONS TO SAID INNER BODY, CONNECTING MEANS RELEASABLY CONNECTING SAID CLAMPING MEANS DIRECTLY TO SAID INNER
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |