US2488896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual pivoted bender for simultaneously bending two parallel lengths of metal tubing
Assignee: Individual
•
Filing: 1946-06-14
•
Granted: 1949-11-22
•
Expires: 1966-06-14
Abstract
No abstract record available.
Inventors
- 👤 Charles J Bertolini
- 👤 Henry Van Dyke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:02
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02; B21D7/024; B21D35/00; B21D35/002; B21D35/003
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |