Patent US397322A successfully refreshed from Google Patents.
Patent US2807141A successfully refreshed from Google Patents.
US2807141A
Expired / Lapsed
US
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Pulsator for a hydraulic system
Assignee: Individual
•
Filing: 1953-06-02
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Granted: 1957-09-24
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Expires: 1973-06-02
Abstract
No abstract record available.
Inventors
- 👤 Don S Strader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:56
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; F; F15; F15B; F15B21/00; F15B21/12; F15B21/125; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7786; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413; Y10T137/86493; Y10T137/86558; Y10T137/86566; Y10T137/86574; Y10T137/86622; Y10T137/8663; Y10T137/86638; Y10T137/86646; Y10T137/86654; Y10T137/86718; Y10T137/86743; Y10T137/86751
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |