Patent US3217833A successfully refreshed from Google Patents.
US3217833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device
Assignee: Individual
•
Filing: 1964-06-29
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Granted: 1965-11-16
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Delmer W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:18
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/32; E04G21/3261; E04G21/3276; E04G5/00; E04G5/04; E04G5/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A SAFETY DEVICE FOR A WORKMAN COMPRISING A SAFETYBELT AND A SAFETY MEANS RELEASABLY CONNECTED TO SAID SAFETY-BELT, SAID SAFETY MEANS BEING RELEASABLY CONNECTABLE TO THE FLANGE OF AN I-BEAM AND INCLUDING A PAIR OF JAW MEMBERS HAVING SLIDABLY ENGAGED PLATE SECTIONS FOR OVERLYING A FLANGE OF AN I-BEAM, EACH OF SAID JAW MEMBERS HAVING AN INWARDLY EXTENDING LEG FOR UNDERLYING A FLANGE OF AN I-BEAM AND UNDERLYING THE PLATE SECTION OF SAID JAW MEMBER, AND EACH JAW MEMBER HAVING A VERTICAL WEB MEMBER INTERCONNECTING SAID LEG AND SAID PLATE SECTION, MEANS FOR LOCKING THE JAW MEMBERS TO EACH OTHER SO THAT THE VERTICAL WEB MEMBERS LIE CLOSELY ADJACENT THE LONGITUDINAL EDGES OF AN I-BEAM FLANGE AND SO THAT THE DISTANCE BETWEEN THE INNERMOST EDGES OF THE LEGS IS SUBSTANTIALLY LESS THAN THE TRANSVERSE WIDTH OF AN I-BEAM FLANGE WHEREBY SAID SAFETY MEANS IS LOCKED TO FLANGE OF AN I-BEAM, AND MOUNTING MEANS CONNECTED TO A SAID PLATE SECTION FOR PIVOTALLY SUPPORTING AN UPWARDLY EXTENDING ELONGATED RIGID MEANS FOR RELEASABLY CONNECTING SAID SAFETY-BELT TO SAID SAFETY MEANS.
Claim 2
Dependent Claim
177 words
A SAFETY DEVICE FOR A WORKMAN COMPRISING A SAFETYBELT AND A SAFETY MEANS RELEASABLY CONNECTED TO SAID SAFETY-BELT, SAID SAFETY MEANS BEING RELEASABLY CONNECTABLE TO THE FLANGE OF AN I-BEAM AND INCLUDING A PAIR OF JAW MEMBERS HAVING SLIDABLY ENGAGED PLATE SECTIONS FOR OVERLYING A FLANGE OF AN I-BEAM, EACH OF SAID JAW MEMBERS HAVING AN INWARDLY EXTENDING LEG FOR UNDERLYING A FLANGE OF AN I-BEAM AND UNDERLYING THE PLATE SECTION OF SAID JAW MEMBER, AND EACH JAW MEMBER HAVING A VERTICAL WEB MEMBER INTERCONNECTING SAID LEG AND SAID PLATE SECTION, MEANS FOR LOCKING THE JAW MEMBERS TO EACH OTHER SO THAT THE VERTICAL WEB MEMBERS LIE CLOSELY ADJACENT THE LONGITUDINAL EDGES OF AN I-BEAM FLANGE AND SO THAT THE DISTANCE BETWEEN THE INNERMOST EDGES OF THE LEGS IS SUBSTANTIALLY LESS THAN THE TRANSVERSE WIDTH OF AN I-BEAM FLANGE WHEREBY SAID SAFETY MEANS IS LOCKED TO FLANGE OF AN I-BEAM, AND MOUNTING MEANS CONNECTED TO A SAID PLATE SECTION FOR PIVOTALLY SUPPORTING AN UPWARDLY EXTENDING ELONGATED RIGID MEANS FOR RELEASABLY CONNECTING SAID SAFETY-BELT TO SAID SAFETY MEANS.
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |