Patent US2911932A successfully refreshed from Google Patents.
US2911932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube making machine
Assignee: WILLIAM WALLACE Co
•
Filing: 1954-03-25
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Granted: 1959-11-10
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Expires: 1974-03-25
Abstract
No abstract record available.
Inventors
- 👤 Kinkead Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:46
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US338567A
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US343024A
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US426641A
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US473019A
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US508350A
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US563255A
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US766531A
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US2116971A
Cited
US2474652A
Cited
US2644416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |