Patent US2846108A successfully refreshed from Google Patents.
US2846108A
Expired / Lapsed
US
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Floating roof anti-turning device
Assignee: Southwest Welding and Manufacturing Co
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Filing: 1954-10-07
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Granted: 1958-08-05
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Expires: 1974-10-07
Abstract
No abstract record available.
Inventors
- 👤 Aller T Dwight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:09
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34; B65D88/42; B65D88/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1945531A
Cited
US1886131A
Cited
US2070828A
Cited
US2536019A
Cited
US2531424A
Cited
US2611504A
Cited
US2669372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |