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US2465677A
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US
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Holder for the ends of tubes
Assignee: Niagara Blower Co
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Filing: 1945-12-13
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Granted: 1949-03-29
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Expires: 1965-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles N Deverall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:09
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; Y; Y10; Y10T; Y10T403/00; Y10T403/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US381242A
Cited
GB189817085A
Cited
US718306A
Cited
US1823532A
Cited
US2047296A
Cited
US2359846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |