US3240048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for binding pipe
Assignee: Walker Manufacturing Co
•
Filing: 1962-08-08
•
Granted: 1966-03-15
•
Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Howard A Callendar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:24
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF BENDING PIPE COMPRISING THE STEPS OF MOUNTING THE PIPE IN BENDING DIE MEANS, APPLYING FORCES TO THE PERIPHERY OF THE PIPE THROUGH THE BENDING DIE MEANS AT PERIPHERALLY SPACED LOCATIONS THEREABOUT, AND DIRECTING FLOW OF THE PIPE MATERIAL TO AREAS OF THE PIPE SUBJECT TO MAXIMUM COMPRESSION AND TENSION DURING THE BENDING OPERATION.
Claim 2
Independent Claim
56 words
A METHOD OF BENDING PIPE COMPRISING THE STEPS OF MOUNTING THE PIPE IN BENDING DIE MEANS, APPLYING FORCES TO THE PERIPHERY OF THE PIPE THROUGH THE BENDING DIE MEANS AT PERIPHERALLY SPACED LOCATIONS THEREABOUT, AND DIRECTING FLOW OF THE PIPE MATERIAL TO AREAS OF THE PIPE SUBJECT TO MAXIMUM COMPRESSION AND TENSION DURING THE BENDING OPERATION.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |