Patent US3005253A successfully refreshed from Google Patents.
US3005253A
Expired / Lapsed
US
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Manufacture of heat exchange tubing
Assignee: General Electric Co
•
Filing: 1958-09-26
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Granted: 1961-10-24
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Expires: 1978-09-26
Abstract
No abstract record available.
Inventors
- 👤 Iii Herbert J Venables
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:02
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49382; Y10T29/51; Y10T29/5188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US336899A
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US1960517A
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US1883222A
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US2167971A
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FR811081A
Cited
US2199594A
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US2303760A
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US2364736A
Cited
US2472245A
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US2532239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |