Patent US1640606A successfully refreshed from Google Patents.
Patent US3285118A successfully refreshed from Google Patents.
US3285118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor bolt with spring actuated toggle head
Assignee: Individual
•
Filing: 1965-01-08
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Granted: 1966-11-15
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Expires: 1985-01-08
Abstract
No abstract record available.
Inventors
- 👤 Edward L Elkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; F16B13/0808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A WALL CLAMPING ANCHOR COMPRISING AN ELONGATED TUBE-LIKE BODY WITH SIMILARLY ELONGATED SLOTS IN ITS SIDE, A WALL-ENGAGING FLANGE AT ONE END OF THE BODY AND OF LARGER DIAMETER THAN THE REMAINDER OF THE BODY, SIMILARLY ELONGATED GUIDES PROJECTING INWARDLY FROM THE SIDE OF THE BODY INTERMEDIATE SAID SLOTS, SUBSTANTIALLY THROUGHOUT THE LENGTH OF THE LATTER, A THREADED NUT HAVING RADIALLY PROJECTING CYLINDRICAL TRUNNIONS WITH TRANSVERSE SLOTS RECEIVING SAID GUIDES AND HELD THEREBY AGAINST ROTATION IN SAID BODY, A PAIR OF DIAMETRICALLY OPPOSITE LOCKING WINGS EACH PIVOTED AT THEIR INNER ENDS ON SAID NUT TO SWING TO POSITIONS PARALLEL TO AND NORMAL TO THE AXIS OF SAID NUT BY PROJECTING THROUGH SAID SLOTS, THERE BEING RADIALLY PROJECTING STOPS AT THE ENDS OF THE GUIDES REMOTE FROM SAID RIM, SPRING MEANS ANCHORED ON SAID NUT AND ENGAGING SAID WINGS TO URGE THEM TO SAID NORMAL POSITIONS,
Claim 2
Dependent Claim
145 words
A WALL CLAMPING ANCHOR COMPRISING AN ELONGATED TUBE-LIKE BODY WITH SIMILARLY ELONGATED SLOTS IN ITS SIDE, A WALL-ENGAGING FLANGE AT ONE END OF THE BODY AND OF LARGER DIAMETER THAN THE REMAINDER OF THE BODY, SIMILARLY ELONGATED GUIDES PROJECTING INWARDLY FROM THE SIDE OF THE BODY INTERMEDIATE SAID SLOTS, SUBSTANTIALLY THROUGHOUT THE LENGTH OF THE LATTER, A THREADED NUT HAVING RADIALLY PROJECTING CYLINDRICAL TRUNNIONS WITH TRANSVERSE SLOTS RECEIVING SAID GUIDES AND HELD THEREBY AGAINST ROTATION IN SAID BODY, A PAIR OF DIAMETRICALLY OPPOSITE LOCKING WINGS EACH PIVOTED AT THEIR INNER ENDS ON SAID NUT TO SWING TO POSITIONS PARALLEL TO AND NORMAL TO THE AXIS OF SAID NUT BY PROJECTING THROUGH SAID SLOTS, THERE BEING RADIALLY PROJECTING STOPS AT THE ENDS OF THE GUIDES REMOTE FROM SAID RIM, SPRING MEANS ANCHORED ON SAID NUT AND ENGAGING SAID WINGS TO URGE THEM TO SAID NORMAL POSITIONS,
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |