US2614573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft breathing oxygen regulator
Assignee: Union Carbide Corp
•
Filing: 1945-05-05
•
Granted: 1952-10-21
•
Expires: 1965-05-05
Abstract
No abstract record available.
Inventors
- 👤 Wilgot J Jacobsson
- 👤 James A Hoffman
- 👤 Samuel R Oldham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:14
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/02; A62B9/022; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7794; Y10T137/7795; Y10T137/7822; Y10T137/783; Y10T137/7831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2313149A
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US571346A
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US744679A
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US684802A
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US746560A
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US1150779A
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US2119471A
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FR765525A
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FR817684A
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US2308861A
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US2383801A
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US2399054A
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US2406888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |