US3390410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread swaging tap
Assignee: Detroit Tap and Tool Co
•
Filing: 1966-05-06
•
Granted: 1968-07-02
•
Expires: 1986-05-06
Abstract
No abstract record available.
Inventors
- 👤 Harry D Bridges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:17
CPC Classifications
B; B21; B21H; B21H3/00; B21H3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A THREAD SWAGING TAP COMPRISING, A SHANK SECTION, A BODY SECTION EXTENDING LONGITUDINALLY FROM SAID SHANK SECTIONS, A HELICAL THREAD FORMED ON SAID BODY SECTION HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY EXTENDING SIZING AREAS SEPARATED BY AN EQUAL NUMBER OF AXIALLY EXTENDING CIRCUMFERENTIALLY SPACED RELIEF AREAS OFFSET RADIALLY INWARDLY FROM SAID SIZING AREAS, AND
Claim 2
Dependent Claim
55 words
A THREAD SWAGING TAP COMPRISING, A SHANK SECTION, A BODY SECTION EXTENDING LONGITUDINALLY FROM SAID SHANK SECTIONS, A HELICAL THREAD FORMED ON SAID BODY SECTION HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY EXTENDING SIZING AREAS SEPARATED BY AN EQUAL NUMBER OF AXIALLY EXTENDING CIRCUMFERENTIALLY SPACED RELIEF AREAS OFFSET RADIALLY INWARDLY FROM SAID SIZING AREAS, AND
References Cited (Backward Citations)
US3218656A
Cited
US3295154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |