Patent US3190406A successfully refreshed from Google Patents.
US3190406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible structure
Assignee: Individual
•
Filing: 1962-09-17
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Granted: 1965-06-22
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 John A Usher
- 👤 John R Usher
- 👤 James F Usher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:50
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
FOR USE IN A COLLAPSIBLE FRAMEWORK STRUCTURE, A PAIR OF CROSSED, VARIABLE-LENGTH BRACE MEMBERS, AND MEANS REMOVABLY CONNECTED WITH SAID BRACE MEMBERS, SAID MEANS INCLUDING A SET OF TIE BARS, EACH OF SAID TIE BARS BEING SEPARABLY, PIVOTALLY CONNECTED TOO AN OUTER SURFACE OF ONE OF SAID BRACE MEMBERS, AND SPACER MEMBERS EXTENDING BETWEEN AND REMOVABLY SECURED TO SAID TIE BARS TO COUPLE SAID BRACE MEMBERS TOGETHER IN ABUTTING RELATIONSHIP AND TO HOLD SAID TIE BARS IN PIVOTAL CONNECTION WITH SAID BRACE MEMBERS.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |