US2852169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety release device for tanks
Assignee: Chamberlain Corp
•
Filing: 1955-09-26
•
Granted: 1958-09-16
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Desire A Kiffer
- 👤 Lawrence D Orser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/0805; B05B9/0811; B05B9/0816
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US655954A
Cited
US1327564A
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US2188682A
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US2194112A
Cited
US2596070A
Cited
US2679946A
Cited
US2665326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |