Patent US2440792A successfully refreshed from Google Patents.
US2440792A
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Method and means for forming rectangular flexible metal tubing
Assignee: TITEFLEX Inc
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Filing: 1946-06-06
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Granted: 1948-05-04
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Expires: 1966-06-06
Abstract
No abstract record available.
Inventors
- 👤 John S Wyllie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:25
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/12; B21C37/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2339219A
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US2305587A
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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) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |