Patent US3368257A successfully refreshed from Google Patents.
US3368257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep-hole drill and reamer
Assignee: Individual
•
Filing: 1966-02-09
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Granted: 1968-02-13
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Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 Rudolf W Andreasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:42
CPC Classifications
B; B23; B23D; B23D77/00; B23D77/006; B23B; B23B51/00; B23B51/04; B23B51/0486; B23B51/06; B23B51/063; B23P; B23P15/00; B23P15/28; B23P15/46; B23D2277/00; B23D2277/02; Y; Y10; Y10S; Y10S408/00; Y10S408/705; Y10T; Y10T407/00; Y10T407/14; Y10T407/19; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/458; Y10T408/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A ROTARY TOOL OF THE TYPE UTILIZING A SHAK WITH AN AXIAL INTERIOR COOLANT PASSAGE AND A BIT BONDED TO THE WORKING END THEREOF, (A) AN ELONGATE BIT HAVING AN ALTERNATE FLUTE AND LAND CONFIGURATION BETWEEN A CUTTING END AND A SHANK END, THE SHANK END HAVING A V-SHAPED NOTCH, (B) A SHANK HAVING AN AXIAL, INTERIOR, COOLANT PASSAGE TERMINATING AT THE BIT END OF THE SHANK, THE BIT END BEING SHAPED TO RECEIVE AND INTERFIT WITH THE NOTCHED PORTION OF THE SHANK END OF THE BIT, AND HAVING AN AXIAL, SEGMENTAL SKIRT EXTENSION TO ENTER AND INTERFIT WITH AN OUTER SEGMENTAL AREA OF EACH FLUTE OF THE BIT TO FORM A DRIVING CONNECTION BETWEEN THE SHANK AND BIT,
Claim 2
Dependent Claim
120 words
IN A ROTARY TOOL OF THE TYPE UTILIZING A SHAK WITH AN AXIAL INTERIOR COOLANT PASSAGE AND A BIT BONDED TO THE WORKING END THEREOF, (A) AN ELONGATE BIT HAVING AN ALTERNATE FLUTE AND LAND CONFIGURATION BETWEEN A CUTTING END AND A SHANK END, THE SHANK END HAVING A V-SHAPED NOTCH, (B) A SHANK HAVING AN AXIAL, INTERIOR, COOLANT PASSAGE TERMINATING AT THE BIT END OF THE SHANK, THE BIT END BEING SHAPED TO RECEIVE AND INTERFIT WITH THE NOTCHED PORTION OF THE SHANK END OF THE BIT, AND HAVING AN AXIAL, SEGMENTAL SKIRT EXTENSION TO ENTER AND INTERFIT WITH AN OUTER SEGMENTAL AREA OF EACH FLUTE OF THE BIT TO FORM A DRIVING CONNECTION BETWEEN THE SHANK AND BIT,
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |