US2873694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod tightener
Assignee: AO Smith Corp
•
Filing: 1955-09-12
•
Granted: 1959-02-17
•
Expires: 1975-09-12
Abstract
No abstract record available.
Inventors
- 👤 Frank T Jaskowiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:42
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US619237A
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US1158247A
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US1154315A
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US1661457A
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US1583647A
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US2483239A
Cited
US2638318A
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US2532743A
Cited
US2449491A
Cited
US2738204A
Cited
US2773700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |