US2700529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivoted valve for narcosis apparatus
Assignee: Svenska AB Gasaccumulator
•
Filing: 1952-03-12
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Granted: 1955-01-25
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Expires: 1972-03-12
Abstract
No abstract record available.
Inventors
- 👤 Svenson Knut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:23
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/18; F16K5/184; A; A61; A61M; A61M16/00; A61M16/20; F16K11/00; F16K11/02; F16K11/08; F16K11/085; F16K11/0853; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86847
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US70511A
Cited
US806679A
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US798852A
Cited
US1166571A
Cited
US1176886A
Cited
US2105331A
Cited
US2164057A
Cited
US2431593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |