US3089716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fitting for attaching together tubular members
Assignee: Kason Display Hardware Inc
•
Filing: 1960-02-04
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Granted: 1963-05-14
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Expires: 1980-02-04
Abstract
No abstract record available.
Inventors
- 👤 Irving L Berkowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:15
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/40; A; A47; A47B; A47B47/00; A47B47/0008; A47B2220/00; A47B2220/11; F16B12/44; F16B2012/446; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1616
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A FITTING FOR INTERCONNECTING HOLLOW TUBULAR MEMBERS, SAID FITTING COMPRISING A SOLID CUBRIC BASE, A SOLID PLUG EXTENDING FROM AT LEAST ONE FACE OF SAID CUBIC BASE, SAID PLUG HAVING A SQUARE PORTION ADJACENT THE BASE, SAID SQUARE PORTION BEING OF UNIFORM TRANSVERSE CROSS-SECTION AND OF A SMALLER DIMENSION THAN SAID BASE FORMING AN EXTERNAL SHOULDER AROUND THE FOUR SIDES OF SAID SQUARE PORTION, A TAPERED PORTION OF SUBSTANTIAL LENGTH EXTENDING FROM SAID SQUARE PORTION, NOTCHES FORMED ON THE CORNER EDGES OF SAID PLUG AND EXTENDING FROM THE OUTER END OF THE PLUG TO A POINT SPACED SUBSTANTIALLY INWARDLY OF THE OUTER END OF THE PLUG, SAID NOTCHES BEING OF INWARDLY CURVED TRANSVERSE CROSS-SECTION, AND THE INNER ENDS OF SAID NOTCHES BEING SUBSTANTIALLY QUARTER SPHERE CONCAVE SURFACES, SAID NOTCHES PROVIDING THE PLUG WITH REINFORCEMENT AGAINST BENDING, THE OUTER END OF SAID PLUG PORTION BETWEEN SAID NOTCHES BEING ROUNDED.
Claim 2
Dependent Claim
148 words
A FITTING FOR INTERCONNECTING HOLLOW TUBULAR MEMBERS, SAID FITTING COMPRISING A SOLID CUBRIC BASE, A SOLID PLUG EXTENDING FROM AT LEAST ONE FACE OF SAID CUBIC BASE, SAID PLUG HAVING A SQUARE PORTION ADJACENT THE BASE, SAID SQUARE PORTION BEING OF UNIFORM TRANSVERSE CROSS-SECTION AND OF A SMALLER DIMENSION THAN SAID BASE FORMING AN EXTERNAL SHOULDER AROUND THE FOUR SIDES OF SAID SQUARE PORTION, A TAPERED PORTION OF SUBSTANTIAL LENGTH EXTENDING FROM SAID SQUARE PORTION, NOTCHES FORMED ON THE CORNER EDGES OF SAID PLUG AND EXTENDING FROM THE OUTER END OF THE PLUG TO A POINT SPACED SUBSTANTIALLY INWARDLY OF THE OUTER END OF THE PLUG, SAID NOTCHES BEING OF INWARDLY CURVED TRANSVERSE CROSS-SECTION, AND THE INNER ENDS OF SAID NOTCHES BEING SUBSTANTIALLY QUARTER SPHERE CONCAVE SURFACES, SAID NOTCHES PROVIDING THE PLUG WITH REINFORCEMENT AGAINST BENDING, THE OUTER END OF SAID PLUG PORTION BETWEEN SAID NOTCHES BEING ROUNDED.
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |