US3222960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arbor construction for pipe tools
Assignee: Individual
•
Filing: 1963-11-19
•
Granted: 1965-12-14
•
Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 John B Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:36
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2522
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN AN ARBOR CONSTRUCTION FOR PIPE TOOLS CONTAINING A CENTRAL SHAFT AND GROUPS OF RADIALLY EXPANDABLE FINGERS FOR HOLDING SAID SHAFT IN CENTRAL ALIGNMENT WITHIN A PIPE, IN CONBINATION, A PIPE ENGAGING MEMBER ON EACH GROUP OF EXPANDABLE FINGERS PIVOTALLY ATTACHED TO TWO FINGERS AT THE ENDS THEREOF, ONE OF SAID PIVOTAL ATTACHMENTS BEING FIXED AND THE OTHER HELD FOR AXIAL MOVEMENT IN A SLOT ON THE MEMBER.
Claim 2
Dependent Claim
68 words
IN AN ARBOR CONSTRUCTION FOR PIPE TOOLS CONTAINING A CENTRAL SHAFT AND GROUPS OF RADIALLY EXPANDABLE FINGERS FOR HOLDING SAID SHAFT IN CENTRAL ALIGNMENT WITHIN A PIPE, IN CONBINATION, A PIPE ENGAGING MEMBER ON EACH GROUP OF EXPANDABLE FINGERS PIVOTALLY ATTACHED TO TWO FINGERS AT THE ENDS THEREOF, ONE OF SAID PIVOTAL ATTACHMENTS BEING FIXED AND THE OTHER HELD FOR AXIAL MOVEMENT IN A SLOT ON THE 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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |