US2959850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of welding glass-lined vessels
Assignee: AO Smith Corp
•
Filing: 1955-07-28
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Granted: 1960-11-15
•
Expires: 1975-07-28
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Deringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:33
CPC Classifications
C; C03; C03C; C03C29/00; B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282; C21; C21D; C21D9/00; C21D9/50; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1673653A
Cited
US2184534A
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US2263021A
Cited
US2302563A
Cited
US2401231A
Cited
US2697311A
Cited
US2716690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |