Patent US2895494A successfully refreshed from Google Patents.
US2895494A
Expired / Lapsed
US
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Device for producing pressures varying proportionally to variations in a condition
Assignee: Infilco Inc
•
Filing: 1954-08-09
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Granted: 1959-07-21
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Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 Samuel L Adelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:22
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/40; G01F23/42; G01F23/425; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |