US2682181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cutting apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1950-03-27
•
Granted: 1954-06-29
•
Expires: 1970-03-27
Abstract
No abstract record available.
Inventors
- 👤 John E Toth
- 👤 Roland L Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:49
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/14; B23D21/145; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/5583; Y10T408/5584; Y10T408/563; Y10T408/5633; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T409/306384; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US53325A
Cited
US241974A
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USRE15928E
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US1271854A
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US1280813A
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DE369802C
Cited
US1719599A
Cited
US1972022A
Cited
US1958075A
Cited
US2196208A
Cited
US2541306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |