US3081839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rescue apparatus
Assignee: Individual
•
Filing: 1960-12-05
•
Granted: 1963-03-19
•
Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 William J O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:32
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
RESCUE APPARATUS COMPRISING A LADDER AND A CARRIER MOVABLY MOUNTED THEREON AT THE FRONT THEREOF, SAID CARRIER COMPRISING TWO MAIN SIDES, A BOTTOM ATTACHED TO AND EXTENDING BETWEEN SAID SIDES, SAID CARRIER HAVING AN ENTRANCE OPENING, TWO ADJUSTABLE SIDE MEMBERS ADAPTED TO PROVIDE SIDES FOR SAID ENTRANCE OPENING, FIRST MEANS ADJACENT THE TOP OF SAID MAIN SIDES AND ADJACENT THE BOTTOM OF SAID ADJUSTABLE SIDE MEMBERS PIVOTALLY CONNECTING EACH SAID ADJUSTABLE SIDE MEMBER TO EACH OF SAID MAIN SIDES, SAID ADJUSTABLE SIDE MEMBERS EACH HAVING A SLOT THERETHROUGH EXTENDING LATERALLY THEREOF, AND ADJUSTABLE SECOND MEANS ADJACENT, AND CONNECTED TO, A PORTION OF EACH SAID MAIN SIDE AND EXTENDING THROUGH EACH OF SAID SLOTS WHEREBY SAID ADJUSTABLE SIDE MEMBERS MAY BE MOVED FORWARDLY AND REARWARDLY WITH RELATION TO SAID MAIN SIDES, SAID SLOTS BEING OF SUCH LENGTH AND SAID SECOND
Claim 2
Dependent Claim
139 words
RESCUE APPARATUS COMPRISING A LADDER AND A CARRIER MOVABLY MOUNTED THEREON AT THE FRONT THEREOF, SAID CARRIER COMPRISING TWO MAIN SIDES, A BOTTOM ATTACHED TO AND EXTENDING BETWEEN SAID SIDES, SAID CARRIER HAVING AN ENTRANCE OPENING, TWO ADJUSTABLE SIDE MEMBERS ADAPTED TO PROVIDE SIDES FOR SAID ENTRANCE OPENING, FIRST MEANS ADJACENT THE TOP OF SAID MAIN SIDES AND ADJACENT THE BOTTOM OF SAID ADJUSTABLE SIDE MEMBERS PIVOTALLY CONNECTING EACH SAID ADJUSTABLE SIDE MEMBER TO EACH OF SAID MAIN SIDES, SAID ADJUSTABLE SIDE MEMBERS EACH HAVING A SLOT THERETHROUGH EXTENDING LATERALLY THEREOF, AND ADJUSTABLE SECOND MEANS ADJACENT, AND CONNECTED TO, A PORTION OF EACH SAID MAIN SIDE AND EXTENDING THROUGH EACH OF SAID SLOTS WHEREBY SAID ADJUSTABLE SIDE MEMBERS MAY BE MOVED FORWARDLY AND REARWARDLY WITH RELATION TO SAID MAIN SIDES, SAID SLOTS BEING OF SUCH LENGTH AND SAID SECOND
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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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |