US3208554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rung and side rail connection for ladders
Assignee: Bauer Manufacturing Co
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Filing: 1963-12-02
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Granted: 1965-09-28
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Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 Harold G Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:27
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/08; E06C7/082; E06C7/088
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
151 words
IN A LADDER THE COMBINATION OF A PAIR OF HOLLOW FIBERGLASS SIDE RAILS, A PLURALITY OF SLEEVES HAVING ONE ENLARGED END AND THE REMAINING LENGTH OF A CONTINUOUS UNIFORM CYLINDRICAL SHAPED SLIDABLY POSITIONED THROUGH OPPOSED HOLES IN SAID SIDE RAILS AT EQUALLY SPACED DISTANCES SO THAT SAID ENLARGED ENDS ABUT ONE SIDE OF THE SIDE RAILS AND THE OTHER ENDS PROTRUDE FROM THE OTHER SIDE, FIBERGLASS RUNG MEANS ADAPTED TO BE POSITIONED BETWEEN SAID SIDE RAILS SLIDABLY IN CLOSE FITTING REALTIONSHIP OVER SAID PROTRUDING ENDS OF SAID EQUALLY SPACED SLEEVES TO ABUT THE INNER SIDES OF THE SIDE RAILS, SUPPORT MEANS INSIDE THE SIDE RAILS ADAPTED TO SUPPORT THE AREA ADJACENT TO SAID OPPOSED HOLES, AND BOLT MEANS ADAPTED TO OPERATIVELY ENGAGE THE SLEEVES SUPPORTING OPPOSITE ENDS OF EACH RUNG TO URGE THEM TOGETHER TO HOLD THE ENDS OF THE RUNGS IN PRESSURED ADJACENT RELATIONSHIP WITH RESPECT TO THE SIDE RAILS.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |