US2918061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breathing apparatus
Assignee: La Spirotechnique Industrielle et Commerciale
•
Filing: 1956-11-26
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Granted: 1959-12-22
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Expires: 1976-11-26
Abstract
No abstract record available.
Inventors
- 👤 Gruget Andre
- 👤 Coustean Jacques-Yves
- 👤 Gagnan Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:35
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/02; A62B9/022; B; B63; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/22; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/2036; Y10T137/7722; Y10T137/7781; Y10T137/7832; Y10T137/7835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE645056C
Cited
US2420375A
Cited
US2615463A
Cited
GB715838A
Cited
US2695609A
Cited
US2787280A
Cited
US2872919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |