Patent US2886033A successfully refreshed from Google Patents.
US2886033A
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Breathing apparatus with cam controlled valve
Assignee: La Spirotechnique Industrielle et Commerciale
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Filing: 1957-01-31
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Granted: 1959-05-12
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Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Gagnan Emile
- 👤 Causteau Jacques Yves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:44
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/22; B63C11/2227; A; A62; A62B; A62B9/00; A62B9/02; A62B9/022; Y; Y10; Y10S; Y10S137/00; Y10S137/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2695609A
Cited
US2747572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |