US3194593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible support
Assignee: Individual
•
Filing: 1962-10-03
•
Granted: 1965-07-13
•
Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 Robert G Hendry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:44
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/02; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/60; Y10T403/602
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
AN EXTENSIBLE SUPPORT INCLUDING A FIRST AND SECOND RIGID ELONGATED MEMBER, SAID FIRST MEMBER HAVING A LONGITUDINAL BORE THEREIN, A CYLINDRICAL LINER IN SAID BORE OF SAID FIRST MEMBER, A LONGITUDINAL SLOT IN SAID CYLINDRICAL LINER, SAID CYLINDRICAL LINER INCLUDING A TRANSVERSE SLOT HAVING AN INWARDLY BEVELLED EDGE, SAID SECOND RIGID ELONGATED MEMBER BEING ADAPTED TO SLIDE LONGITUDINALLY IN SAID CYLINDRICAL LINER, A SPRING MEANS FOR ATTACHING SAID SPRING TO SAID SECOND MEMBER, AND LOCKING MEANS ON SAID SECOND MEMBER RESILIENTLY BIASED TO URGE SAID MEANS RADIALLY OUTWARDLY THEREFROM TO ENGAGE SAID TRANSVERSE SLOT OF SAID CYLINDRICAL LINER OF SAID FIRST MEMBER THEREBY LOCKING SAID FIRST MEMBER TO SAID SECOND MEMBER AT A PREDETERMINED EXTENDED POSITION, SAID LOCKING MEANS COOPERATING WITH SAID TRANSVERSE SLOT, ON THE BEVELLED EDGE THEREOF, TO RELEASE SAID LOCKING MEANS AS SAID SECOND MEMBER IS ROTATED RELATIVE TO SAID FIRST MEMBER, SAID LONGITUDINAL SLOT IN SAID CYLINDRICAL LINER CO-OPERATING WITH ONE END OF SAID SPRING, TO BIAS SAID SECOND MEMBER RELATIVE TO SAID FIRST MEMBER THEREBY TO RETURN SAID LOCKING MEANS TO SAID SECOND MEMBER TO A RADIAL POSITION IN REGISTER WITH SAID ARCUATE SLOT IN SAID FIRST MEMBER.
Claim 2
Dependent Claim
193 words
AN EXTENSIBLE SUPPORT INCLUDING A FIRST AND SECOND RIGID ELONGATED MEMBER, SAID FIRST MEMBER HAVING A LONGITUDINAL BORE THEREIN, A CYLINDRICAL LINER IN SAID BORE OF SAID FIRST MEMBER, A LONGITUDINAL SLOT IN SAID CYLINDRICAL LINER, SAID CYLINDRICAL LINER INCLUDING A TRANSVERSE SLOT HAVING AN INWARDLY BEVELLED EDGE, SAID SECOND RIGID ELONGATED MEMBER BEING ADAPTED TO SLIDE LONGITUDINALLY IN SAID CYLINDRICAL LINER, A SPRING MEANS FOR ATTACHING SAID SPRING TO SAID SECOND MEMBER, AND LOCKING MEANS ON SAID SECOND MEMBER RESILIENTLY BIASED TO URGE SAID MEANS RADIALLY OUTWARDLY THEREFROM TO ENGAGE SAID TRANSVERSE SLOT OF SAID CYLINDRICAL LINER OF SAID FIRST MEMBER THEREBY LOCKING SAID FIRST MEMBER TO SAID SECOND MEMBER AT A PREDETERMINED EXTENDED POSITION, SAID LOCKING MEANS COOPERATING WITH SAID TRANSVERSE SLOT, ON THE BEVELLED EDGE THEREOF, TO RELEASE SAID LOCKING MEANS AS SAID SECOND MEMBER IS ROTATED RELATIVE TO SAID FIRST MEMBER, SAID LONGITUDINAL SLOT IN SAID CYLINDRICAL LINER CO-OPERATING WITH ONE END OF SAID SPRING, TO BIAS SAID SECOND MEMBER RELATIVE TO SAID FIRST MEMBER THEREBY TO RETURN SAID LOCKING MEANS TO SAID SECOND MEMBER TO A RADIAL POSITION IN REGISTER WITH SAID ARCUATE SLOT IN SAID FIRST MEMBER.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |