US2941064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of welding sheet steel members having liner sheets
Assignee: Rheem Manufacturing Co
•
Filing: 1956-07-20
•
Granted: 1960-06-14
•
Expires: 1976-07-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph H Gieser
- 👤 John R Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:23
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/16; Y; Y10; Y10S; Y10S220/00; Y10S220/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1067883A
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GB220391A
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US2026122A
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US2127269A
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US2263021A
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US2613015A
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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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |