Patent US3201821A successfully refreshed from Google Patents.
US3201821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge
Assignee: Individual
•
Filing: 1963-04-01
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Granted: 1965-08-24
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Niles L Ruckstuhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:28
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/06; E05D3/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A HINGE COMPRISING, TWO ADJACENT LINK MEMBERS; FOUR IDENTICALLY SHAPED SUPPORT MEMBERS ARRANGED IN TWO PAIRS WITH THE SUPPORT MEMBERS OF EACH PAIR LYING IN THE SAME PLANE; A SPACER MEMBER LOCATED BETWEEN EACH PAIR OF SUPPORT MEMBERS TO SPACE THE SUPPORT MEMBERS APART SUFFICIENTLY TO ALLOW BOTH LINK MEMBERS TO BE POSITIONED THEREBETWEEN IN PARALLEL, SUPERIMPOSED, RELATIONSHIP WHEN THE TWO PAIRS OF SUPPORT MEMBERS ARE MOVED INTO FACING ENGAGEMENT; MEANS PIVOTALLY CONNECTING EACH LINK MEMBER WITH ONE OF THE SUPPORT MEMBERS IN EACH PAIR, WITH THE LINK MEMBERS EACH HAVING ONE END PIVOTING AROUNG THE SAME AXIS AS ONE END OF THE OTHER LINK MEMBER AT ALL TIMES.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |