US2722947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selector for multiple fluid pressure operating system
Assignee: Individual
•
Filing: 1949-12-27
•
Granted: 1955-11-08
•
Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 Sragal Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:43
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/103; B60S; B60S9/00; B60S9/02; B60S9/10; B60S9/12; F; F15; F15B; F15B11/00; F15B11/16; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/3056; F15B2211/30585; F15B2211/31; F15B2211/3138; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/70; F15B2211/71; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646; Y10T137/86654; Y10T137/877; Y10T137/87788; Y10T137/8782
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) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |