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US2840398A
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US
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Automatic coupling or latching mechanism
Assignee: Combustion Engineering Inc
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Filing: 1956-05-02
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Granted: 1958-06-24
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Expires: 1976-05-02
Abstract
No abstract record available.
Inventors
- 👤 Robert A Chapellier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:26
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/002; F; F16; F16B; F16B2200/00; F16B2200/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB500632A
Cited
US2246834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |