US2569032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant pressure inlet for mass spectrometers
Assignee: Consolidated Engineering Co Inc
•
Filing: 1948-04-30
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Granted: 1951-09-25
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Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Harold W Washburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:21
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/24; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86083; Y10T137/86187; Y10T137/877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2355658A
Cited
US2387786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |