US3120768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gun drill assembly
Assignee: Individual
•
Filing: 1962-07-10
•
Granted: 1964-02-11
•
Expires: 1982-07-10
Abstract
No abstract record available.
Inventors
- 👤 Williams Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:06
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/0486; B23B51/06; B23B51/063; B23B51/066; Y; Y10; Y10S; Y10S408/00; Y10S408/705; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/78
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
A GUN DRILL ASSEMBLY COMPRISING A TUBULAR SHANK HAVING A FLUTE EXTENDING THEREALONG AND HAVING THE SAME CROSS-SECTIONAL SHAPE FROM END-TO-END THEREOF, A TUBULAR DRIVER TELESCOPED OVER ONE END OF SAID SHANK HAVING A BORE PROVIDED WITH AN ANNULAR SHOULDER SPACED INWARDLY FROM ONE END THEREOF, THE OTHER END OF SAID DRIVER HAVING A THIN-WALLED TUBULAR EXTENSION THE INTERIOR SURFACE OF WHICH IS CO-EXTENSIVE WITH THE ADJACENT INTERIOR SURFACE OF SAID BORE, SAID EXTENSION BEING DEFORMED INTO SAID
References Cited (Backward Citations)
US1144088A
Cited
US2986960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |