Patent US2605732A successfully refreshed from Google Patents.
US2605732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube welding machine
Assignee: Airco Inc
•
Filing: 1945-04-10
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Granted: 1952-08-05
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Expires: 1965-04-10
Abstract
No abstract record available.
Inventors
- 👤 James L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:52
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/025; B23K9/0253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2235553A
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US2256879A
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US2371376A
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US2434751A
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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) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |