US3285261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breathing demand regulator
Assignee: Life Support Products Inc
•
Filing: 1962-12-21
•
Granted: 1966-11-15
•
Expires: 1982-12-21
Abstract
No abstract record available.
Inventors
- 👤 Chaney Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:50
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/02; A62B9/022; A62B9/027; A61; A61M; A61M16/00; A61M16/20; A61M16/201; A61M16/206; G; G05; G05B; G05B2219/00; G05B2219/30; G05B2219/43; G05B2219/43183; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7766; Y10T137/7781; Y10T137/7793; Y10T137/7795
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE681514C
Cited
US2384669A
Cited
US2597039A
Cited
US2764151A
Cited
DE1037379B
Cited
US2914293A
Cited
US2988085A
Cited
GB885353A
Cited
GB1222151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |