Patent US3336614A successfully refreshed from Google Patents.
US3336614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread-cutting tap and method of producing it
Assignee: Individual
•
Filing: 1965-04-15
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Granted: 1967-08-22
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Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 Benjamin Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:30
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/28; B23P15/48; Y; Y10; Y10T; Y10T408/00; Y10T408/26; Y10T408/78; Y10T408/89; Y10T408/904; Y10T408/9048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A THREAD-CUTTING TAP THE COMBINATION OF: AN ELONGATED GENERALLY CIRCULAR IN CROSS SECTION STEEL BODY HAVING A GENERALLY ARCUATE PERIPHERAL PORTION; A DRIVING SHANK OF SAID BODY; GROOVED PORTIONS DISPOSED LONGITUDINALLY IN SAID BODY, SAID GROOVED PORTIONS RECESSED BELOW SAID PERIPHERAL PORTION AND COMMUNICATING THEREWITH; SIDES OF SAID GROOVED PORTIONS DISPOSED AT SAID PERIPHERAL PORTION; AND IN CROSS SECTION THREAD-CUTTING CARBIDE THREAD STRUCTURES SECURED TO SAID PERIPHERAL PORTION; CUTTING ENDS OF SAID THREAD STRUCTURES CANTILEVERED FROM SAID SIDES OF SAID GROOVED PORTIONS AND OVERLYING SAID GROOVED PORTIONS TO PERMIT GRINDING OF THE ENDS OF SAID THREAD STRUC-
Claim 2
Dependent Claim
98 words
IN A THREAD-CUTTING TAP THE COMBINATION OF: AN ELONGATED GENERALLY CIRCULAR IN CROSS SECTION STEEL BODY HAVING A GENERALLY ARCUATE PERIPHERAL PORTION; A DRIVING SHANK OF SAID BODY; GROOVED PORTIONS DISPOSED LONGITUDINALLY IN SAID BODY, SAID GROOVED PORTIONS RECESSED BELOW SAID PERIPHERAL PORTION AND COMMUNICATING THEREWITH; SIDES OF SAID GROOVED PORTIONS DISPOSED AT SAID PERIPHERAL PORTION; AND IN CROSS SECTION THREAD-CUTTING CARBIDE THREAD STRUCTURES SECURED TO SAID PERIPHERAL PORTION; CUTTING ENDS OF SAID THREAD STRUCTURES CANTILEVERED FROM SAID SIDES OF SAID GROOVED PORTIONS AND OVERLYING SAID GROOVED PORTIONS TO PERMIT GRINDING OF THE ENDS OF SAID THREAD STRUC-
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |