Patent US3279237A successfully refreshed from Google Patents.
US3279237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mandrel for bending tubing
Assignee: Mueller Brass Co
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Filing: 1963-05-20
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Granted: 1966-10-18
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Harold K Rader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:26
CPC Classifications
B; B21; B21D; B21D9/00; B21D9/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A TUBE BENDING MANDREL FOR BENDING A HOLLOW TUBE BLANK HAVING AN OPEN END AND AN, AT LEAST PARTIALLY, CLOSED OPPOSITE END, SAID MANDREL COMPRISING AN ELONGATED BODY PORTION ADAPTED TO EXTEND INTO THE TUBE BLANK, AND A BASE CONNECTED TO ONE END OF SAID BODY PORTION, SAID BODY PORTION BEING FORMED OF A RELATIVELY FLEXIBLE PLASTIC-LIKE INCOMPRESSIBLE MATERIAL AND BEING LONGITUDINALLY FLEXIBLE, SAID BODY PORTION TERMINATING IN A NOSE PORTION WITH SAID BODY AND NOSE PORTIONS BEING OF A SIZE TO BE GENERALLY IN-
Claim 2
Dependent Claim
85 words
A TUBE BENDING MANDREL FOR BENDING A HOLLOW TUBE BLANK HAVING AN OPEN END AND AN, AT LEAST PARTIALLY, CLOSED OPPOSITE END, SAID MANDREL COMPRISING AN ELONGATED BODY PORTION ADAPTED TO EXTEND INTO THE TUBE BLANK, AND A BASE CONNECTED TO ONE END OF SAID BODY PORTION, SAID BODY PORTION BEING FORMED OF A RELATIVELY FLEXIBLE PLASTIC-LIKE INCOMPRESSIBLE MATERIAL AND BEING LONGITUDINALLY FLEXIBLE, SAID BODY PORTION TERMINATING IN A NOSE PORTION WITH SAID BODY AND NOSE PORTIONS BEING OF A SIZE TO BE GENERALLY IN-
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |