Patent US2469406A successfully refreshed from Google Patents.
US2469406A
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US
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Apparatus for bending tubing into serpentine coils and sweep mechanism and index therefor
Assignee: Bundy Tubing Co
•
Filing: 1947-05-15
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Granted: 1949-05-10
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Expires: 1967-05-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Payne
- 👤 Arthur M Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:55
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/06; B21D11/07; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063
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) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |