US3236104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube expander
Assignee: Individual
•
Filing: 1963-06-10
•
Granted: 1966-02-22
•
Expires: 1983-06-10
Abstract
No abstract record available.
Inventors
- 👤 Edward B Pape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:12
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A TUBE EXPANDER INCLUDING: A SWAGE OF PYRAMIDAL FORM TO PROVIDE SHARP CORNERS WHERE THE LATERAL EDGES MEET THE BASE, AND A CYLINDRICAL PORTION THE AXIS OF WHICH LIES ON THE ALTITUDE OF THE SWAGE AND JOINS THEREWITH, SAID SWAGE AND SAID CYLINDRICAL PORTION ADAPTED FOR RECEPTION WITHIN TUBE TO BE DEFORMED, AND MEANS WHEREBY THE SWAGE MAY BE GYRATED ON ITS AXIS.
Claim 2
Dependent Claim
63 words
A TUBE EXPANDER INCLUDING: A SWAGE OF PYRAMIDAL FORM TO PROVIDE SHARP CORNERS WHERE THE LATERAL EDGES MEET THE BASE, AND A CYLINDRICAL PORTION THE AXIS OF WHICH LIES ON THE ALTITUDE OF THE SWAGE AND JOINS THEREWITH, SAID SWAGE AND SAID CYLINDRICAL PORTION ADAPTED FOR RECEPTION WITHIN TUBE TO BE DEFORMED, AND MEANS WHEREBY THE SWAGE MAY BE GYRATED ON ITS AXIS.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |