US3288248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pool ladder
Assignee: Individual
•
Filing: 1965-01-13
•
Granted: 1966-11-29
•
Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Steven D Gurian
- 👤 Morton M Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:54
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/14; E06C1/24; E04; E04H; E04H4/00; E04H4/14; E04H4/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A LADDER COMPRISING A PAIR OF LATERALLY SPACED AFRAMES, A PLURALITY OF LATERALLY EXTENDING SPACED STEPS CONNECTED BETWEEN ONE PAIR OF OPPOSED LEGS OF SAID AFRAMES AND FORMING A FIRST GROUP OF STEPS, A SECOND GROUP OF STEPS, AND MEANS MOUNTING SAID SECOND GROUP OF STEPS ADJACENT THE OTHER PAIR OF LEGS OF SAID A-FRAMES FOR MOVEMENT BETWEEN A LOWER POSITION WHEREIN THE SECOND GROUP OF STEPS ARE SUBSTANTIALLY COEXTENSIVE WITH SAID OTHER PAIR OF LEGS AND THE LOWEST STEP IS POSITIONED ADJACENT TO THE BOTTOM OF SAID A-FRAMES TO ALLOW ACCESS TO THE UPPER PORTION OF THE LADDER, AND A RAISED POSITION WHEREIN THE LOWEST STEP IS SPACED A SUBSTANTIAL DISTANCE FROM THE BOTTOM OF SAID A-FRAMES AND THE SPACE BETWEEN SAID LOWEST STEP IN THE RAISED POSITION AND THE BOTTOM OF SAID AFRAMES IS VOID OF STEPS FOR PREVENTING ACCESS TO THE UPPER PORTION OF THE LADDER FROM THE SIDE OF THE LADDER HAVING SAID SECOND GROUP OF STEPS.
Claim 2
Dependent Claim
161 words
A LADDER COMPRISING A PAIR OF LATERALLY SPACED AFRAMES, A PLURALITY OF LATERALLY EXTENDING SPACED STEPS CONNECTED BETWEEN ONE PAIR OF OPPOSED LEGS OF SAID AFRAMES AND FORMING A FIRST GROUP OF STEPS, A SECOND GROUP OF STEPS, AND MEANS MOUNTING SAID SECOND GROUP OF STEPS ADJACENT THE OTHER PAIR OF LEGS OF SAID A-FRAMES FOR MOVEMENT BETWEEN A LOWER POSITION WHEREIN THE SECOND GROUP OF STEPS ARE SUBSTANTIALLY COEXTENSIVE WITH SAID OTHER PAIR OF LEGS AND THE LOWEST STEP IS POSITIONED ADJACENT TO THE BOTTOM OF SAID A-FRAMES TO ALLOW ACCESS TO THE UPPER PORTION OF THE LADDER, AND A RAISED POSITION WHEREIN THE LOWEST STEP IS SPACED A SUBSTANTIAL DISTANCE FROM THE BOTTOM OF SAID A-FRAMES AND THE SPACE BETWEEN SAID LOWEST STEP IN THE RAISED POSITION AND THE BOTTOM OF SAID AFRAMES IS VOID OF STEPS FOR PREVENTING ACCESS TO THE UPPER PORTION OF THE LADDER FROM THE SIDE OF THE LADDER HAVING SAID SECOND GROUP OF STEPS.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |