Patent US2975513A successfully refreshed from Google Patents.
US2975513A
Expired / Lapsed
US
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Method of lining
Assignee: AO Smith Corp
•
Filing: 1956-11-05
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Granted: 1961-03-21
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Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 John J Chyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:27
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/16; B23K11/20; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US691815A
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US1792082A
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US1615585A
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US1998496A
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US2015173A
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US2147407A
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US2219352A
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US2214002A
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US2471663A
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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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |