US2835269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel closure
Assignee: AO Smith Corp
•
Filing: 1953-04-10
•
Granted: 1958-05-20
•
Expires: 1973-04-10
Abstract
No abstract record available.
Inventors
- 👤 Hale D Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:10
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/20; F16K1/2007; F16K1/2028; F16K1/2042; F16K1/2057; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7734
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US639218A
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US755284A
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US1636461A
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US2002672A
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US1948628A
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US1947071A
Cited
US2112630A
Cited
FR900318A
Cited
US2446767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |