Patent US3512111A successfully refreshed from Google Patents.
Patent US2731037A successfully refreshed from Google Patents.
US2731037A
Expired / Lapsed
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Hydraulic accumulators
Assignee: CHICAGO METAL HOSE Corp
•
Filing: 1950-09-23
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Granted: 1956-01-17
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Expires: 1970-09-23
Abstract
No abstract record available.
Inventors
- 👤 Frank S Schindler
- 👤 Kenneth H Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:05
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/103; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3153; F15B2201/40; F15B2201/41; F15B2201/415; F15B2201/4155
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) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |