US3221838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deck and lift structure for scaffolding and the like
Assignee: Individual
•
Filing: 1962-11-08
•
Granted: 1965-12-07
•
Expires: 1982-11-08
Abstract
No abstract record available.
Inventors
- 👤 Alton M Brayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:51
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/18; E04G1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A LIFT MECHANISM COMPRISING: (A) A REVERSIBLE STROKE IMPARTING ELEMENT; (B) A HOUSING FOR SAID STROKE IMPARTING ELEMENT; (C) A PAIR OF SPACED APART LOCKS SECURED TO SAID HOUSING; (D) A PAIR OF SPACED APART CONNECTOR ELEMENTS, THE SPACE BETWEEN SAID CONNECTORS AND SAID LOCKS BEING SUBSTANTIALLY EQUAL; (E) A PLURALITY OF UPRIGHT ELEMENTS TO WHICH SAID STROKE IMPARTING ELEMENT IS DETACHABLY AND SUCCESSIVELY SECURED AT SAID CONNECTOR ELEMENTS EXTENDING THEREFROM, AND (F) A DECK ACTED UPON BY SAID STROKE IMPARTING ELEMENT AND BENEATH WHICH ONE OF SAID UPRIGHT MEMBERS IS INSERTABLE UPON EACH STROKE OF SAID STROKE IMPARTING ELEMENT.
Claim 2
Dependent Claim
100 words
A LIFT MECHANISM COMPRISING: (A) A REVERSIBLE STROKE IMPARTING ELEMENT; (B) A HOUSING FOR SAID STROKE IMPARTING ELEMENT; (C) A PAIR OF SPACED APART LOCKS SECURED TO SAID HOUSING; (D) A PAIR OF SPACED APART CONNECTOR ELEMENTS, THE SPACE BETWEEN SAID CONNECTORS AND SAID LOCKS BEING SUBSTANTIALLY EQUAL; (E) A PLURALITY OF UPRIGHT ELEMENTS TO WHICH SAID STROKE IMPARTING ELEMENT IS DETACHABLY AND SUCCESSIVELY SECURED AT SAID CONNECTOR ELEMENTS EXTENDING THEREFROM, AND (F) A DECK ACTED UPON BY SAID STROKE IMPARTING ELEMENT AND BENEATH WHICH ONE OF SAID UPRIGHT MEMBERS IS INSERTABLE UPON EACH STROKE OF SAID STROKE IMPARTING ELEMENT.
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Cited
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |