Patent US3121476A successfully refreshed from Google Patents.
US3121476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Staircase elevator
Assignee: Individual
•
Filing: 1960-08-29
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Granted: 1964-02-18
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Expires: 1980-08-29
Abstract
No abstract record available.
Inventors
- 👤 Mazzarelli Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:52
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/06; B66B9/08; B66B9/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN INCLINED ELEVATOR STRUCTURE COMPRISING, IN COMBINATION, A PAIR OF SPACED-APART, SUBSTANTIALLY ENCLOSED RAILS EXTENDING AT AN INCLINATION BETWEEN AN UPPER LANDING AND A LOWER LANDING, SAID RAILS TERMINATING AT THEIR LOWER ENDS AT THE LEVEL OF THE LOWER LANDING, AN ELEVATOR CARRIAGE ARRANGED BETWEEN AND SUPPORTED BY SAID RAILS FOR MOVEMENT FROM A POSITION SUBSTANTIALLY LEVEL WITH ONE OF SAID LANDINGS TO A POSITION SUBSTANTIALLY LEVEL WITH THE OTHER, CONTROL MEANS OPERABLE AT WILL FOR INAUGURATING THE MOVEMENT OF THE CARRIAGE, POWER MEANS OPERABLE IN RESPONSE TO SAID CONTROL MEANS FOR EFFECTING THE MOVEMENT OF THE CARRIAGE, AND MEANS FOR MOVABLY SUPPORTING SAID CARRIAGE ON SAID RAILS COMPRISING A PLURALITY OF SUSPENSION COUPLINGS SECURED TO OPPOSITE SIDES OF THE CARRIAGE AND SUPPORTED BY INTERIOR SURFACES OF SAID RAILS FOR FREE TRANSLATION THEREOVER.
Claim 2
Dependent Claim
133 words
AN INCLINED ELEVATOR STRUCTURE COMPRISING, IN COMBINATION, A PAIR OF SPACED-APART, SUBSTANTIALLY ENCLOSED RAILS EXTENDING AT AN INCLINATION BETWEEN AN UPPER LANDING AND A LOWER LANDING, SAID RAILS TERMINATING AT THEIR LOWER ENDS AT THE LEVEL OF THE LOWER LANDING, AN ELEVATOR CARRIAGE ARRANGED BETWEEN AND SUPPORTED BY SAID RAILS FOR MOVEMENT FROM A POSITION SUBSTANTIALLY LEVEL WITH ONE OF SAID LANDINGS TO A POSITION SUBSTANTIALLY LEVEL WITH THE OTHER, CONTROL MEANS OPERABLE AT WILL FOR INAUGURATING THE MOVEMENT OF THE CARRIAGE, POWER MEANS OPERABLE IN RESPONSE TO SAID CONTROL MEANS FOR EFFECTING THE MOVEMENT OF THE CARRIAGE, AND MEANS FOR MOVABLY SUPPORTING SAID CARRIAGE ON SAID RAILS COMPRISING A PLURALITY OF SUSPENSION COUPLINGS SECURED TO OPPOSITE SIDES OF THE CARRIAGE AND SUPPORTED BY INTERIOR SURFACES OF SAID RAILS FOR FREE TRANSLATION THEREOVER.
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) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |