US3374696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bit means
Assignee: WALTER TREVATHAN CORP
•
Filing: 1966-02-23
•
Granted: 1968-03-26
•
Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 Walter E Trevathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:00
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/0002; B23B51/0003; B23B2251/00; B23B2251/02; Y; Y10; Y10S; Y10S408/00; Y10S408/713; Y10T; Y10T408/00; Y10T408/89; Y10T408/895; Y10T408/907; Y10T408/909; Y10T408/9098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
BIT MEANS FOR FORMING A CIRCULAR CUT IN A PIECE OF WORK MATERIAL COMPRISING AN ELONGATED TUBULAR BODY MEMBER ADAPTED FOR ROTATION ABOUT ITS LONGITUDINAL AXIS AND HAVING A PROXIMAL END AND A DISTAL END, A CUTTING RING MEMBER HAVING A PROXIMAL END AND A DISTAL END PROVIDED WITH CUTTING MEANS, SAID MEMBERS RESPECTIVELY INCLUDING ADJACENT THE DISTAL END OF SAID BODY MEMBER, AND ADJACENT THE PROXIMAL END OF SAID RING MEMBER OVERLAPPING AND MATING STEPPED PORTIONS RESPECTIVELY ATTACHED TO SAID MEMBERS AND TELESCOPICALLY RECEIVED TOGETHER TO ESTABLISH A SUBSTANTIALLY ANNULAR WALL OF SAID BIT MEANS EXTENDING FROM ADJACENT SAID PROXIMAL END OF SAID TUBULAR BODY FI-01 MEMBER TO SAID DISTAL END OF SAID CUTTING RING MEMBER, ONE OF SAID MEMBERS BEING PROVIDED WITH APERTURES, THE OTHER OF SAID MEMBERS INCLUDING PROJECTIONS PROJECTING GENERALLY RADIALLY TOWARD SAID ONE OF SAID MEMBERS AND RESPECTIVELY INTO CORRESPONDING ONES OF SAID APERTURES FOR ENGAGEMENT WITH PORTIONS OF SAID ONE OF SAID MEMBERS TO SECURE SAID CUTTING RING MEMBER WITH RESPECT TO SAID BODY MEMBER.
Claim 2
Dependent Claim
171 words
BIT MEANS FOR FORMING A CIRCULAR CUT IN A PIECE OF WORK MATERIAL COMPRISING AN ELONGATED TUBULAR BODY MEMBER ADAPTED FOR ROTATION ABOUT ITS LONGITUDINAL AXIS AND HAVING A PROXIMAL END AND A DISTAL END, A CUTTING RING MEMBER HAVING A PROXIMAL END AND A DISTAL END PROVIDED WITH CUTTING MEANS, SAID MEMBERS RESPECTIVELY INCLUDING ADJACENT THE DISTAL END OF SAID BODY MEMBER, AND ADJACENT THE PROXIMAL END OF SAID RING MEMBER OVERLAPPING AND MATING STEPPED PORTIONS RESPECTIVELY ATTACHED TO SAID MEMBERS AND TELESCOPICALLY RECEIVED TOGETHER TO ESTABLISH A SUBSTANTIALLY ANNULAR WALL OF SAID BIT MEANS EXTENDING FROM ADJACENT SAID PROXIMAL END OF SAID TUBULAR BODY FI-01 MEMBER TO SAID DISTAL END OF SAID CUTTING RING MEMBER, ONE OF SAID MEMBERS BEING PROVIDED WITH APERTURES, THE OTHER OF SAID MEMBERS INCLUDING PROJECTIONS PROJECTING GENERALLY RADIALLY TOWARD SAID ONE OF SAID MEMBERS AND RESPECTIVELY INTO CORRESPONDING ONES OF SAID APERTURES FOR ENGAGEMENT WITH PORTIONS OF SAID ONE OF SAID MEMBERS TO SECURE SAID CUTTING RING MEMBER WITH RESPECT TO SAID BODY MEMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |