US3292830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge for folding backpacks
Assignee: Individual
•
Filing: 1965-10-22
•
Granted: 1966-12-20
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Richard G Mack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:01
CPC Classifications
A; A45; A45F; A45F3/00; A45F3/04; A45F3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SUPPORT HINE FOR FOLDING MEMBERS COMPRISING IN COMBINATION, A TRANSVERSE SUPPORT MEMBER HAVING LEGS PROJECTING FORWARDLY AND A VERTICAL MEMBER HAVING DEPENDING LEGS, SAID DEPENDING LEGS ABBUTING THE TRANSVERSE LEGS AT RIGHT ANGLES THERETO IN THE OPERATIVE POSITION, AND A HINGE FORMED OF AN INTERNAL PIECE OF MATERIAL BENT IN AN ARC AND FORMING SPACED RIGHT ANGLED TRIANGLES WITH A BASE AND AN ALTITUDE, THE ARCUATE BEND BEING THE HYPOTENUSE THEREOF, SAID BASE HAVING REARWARDLY PROJECTING EARS PIVOTALLY SECURED TO THE TRANSVERSE LEGS, AND THE ALTITUDE PIVOTALLY CONNECTED TO THE DEPENDING LEG MEMBERS, SAID ARCUATE HYPOTENUSE BEING A SUPPORT BRACE BETWEEN SAID TRANSVERSE LEGS AND SAID DEPENDING LEGS IN THE OPERATIVE POSITION.
Claim 2
Dependent Claim
113 words
A SUPPORT HINE FOR FOLDING MEMBERS COMPRISING IN COMBINATION, A TRANSVERSE SUPPORT MEMBER HAVING LEGS PROJECTING FORWARDLY AND A VERTICAL MEMBER HAVING DEPENDING LEGS, SAID DEPENDING LEGS ABBUTING THE TRANSVERSE LEGS AT RIGHT ANGLES THERETO IN THE OPERATIVE POSITION, AND A HINGE FORMED OF AN INTERNAL PIECE OF MATERIAL BENT IN AN ARC AND FORMING SPACED RIGHT ANGLED TRIANGLES WITH A BASE AND AN ALTITUDE, THE ARCUATE BEND BEING THE HYPOTENUSE THEREOF, SAID BASE HAVING REARWARDLY PROJECTING EARS PIVOTALLY SECURED TO THE TRANSVERSE LEGS, AND THE ALTITUDE PIVOTALLY CONNECTED TO THE DEPENDING LEG MEMBERS, SAID ARCUATE HYPOTENUSE BEING A SUPPORT BRACE BETWEEN SAID TRANSVERSE LEGS AND SAID DEPENDING LEGS IN THE OPERATIVE POSITION.
References Cited (Backward Citations)
AT56633B
Cited
US2822117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |