US3209383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluted lobular thread-forming members
Assignee: Textron Industries Inc
•
Filing: 1961-09-15
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Granted: 1965-10-05
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Expires: 1981-09-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:27
CPC Classifications
B; B23; B23G; B23G7/00; B23G7/02; B21; B21H; B21H3/00; B21H3/10; B23P; B23P15/00; B23P15/28; B23P15/48; B21H3/02; B21H3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A THREAD-FORMING MEMBER FOR SWAGING THREADS IN A PARENT BODY COMPRISING, A LOBULAR FLUTED SHANK PORTION INCLUDING A TAPERED WORKENTERING END, SAID SHANK MIDPORTION IN CROSS SECTION COMPRISING AN ODD NUMBER OF SYMMETRICALLY ARRANGED ROLL-THREADED LOBES SEPARATED BY INTERMEDIATE CONCAVE FLUTES, THE RADIUS OF CURVATURE OF AT LEAST THE OUTERMOST PORTION OF SAID LOBES BEING SUBSTANTIALLY LESS THAN THE DISTANCE FROM SAID MEMBER AXIS TO THE LOBE EXTREMITY SUBSTANTIALLY AT THE MIDPOINT OF SAID LOBE, AND THE RADIUS OF CURVATURE OF THE ROOT OF SAID LOBES BEING SUBSTANTIALLY LESS THAN THE MAXIMUM DISTANCE BETWEEN SAID AXIS AND SAID ROOT.
Claim 2
Dependent Claim
99 words
A THREAD-FORMING MEMBER FOR SWAGING THREADS IN A PARENT BODY COMPRISING, A LOBULAR FLUTED SHANK PORTION INCLUDING A TAPERED WORKENTERING END, SAID SHANK MIDPORTION IN CROSS SECTION COMPRISING AN ODD NUMBER OF SYMMETRICALLY ARRANGED ROLL-THREADED LOBES SEPARATED BY INTERMEDIATE CONCAVE FLUTES, THE RADIUS OF CURVATURE OF AT LEAST THE OUTERMOST PORTION OF SAID LOBES BEING SUBSTANTIALLY LESS THAN THE DISTANCE FROM SAID MEMBER AXIS TO THE LOBE EXTREMITY SUBSTANTIALLY AT THE MIDPOINT OF SAID LOBE, AND THE RADIUS OF CURVATURE OF THE ROOT OF SAID LOBES BEING SUBSTANTIALLY LESS THAN THE MAXIMUM DISTANCE BETWEEN SAID AXIS AND SAID ROOT.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |