US2894533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed center valve and system
Assignee: New Products Corp
•
Filing: 1955-08-26
•
Granted: 1959-07-14
•
Expires: 1975-08-26
Abstract
No abstract record available.
Inventors
- 👤 Oscar H Banker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:36
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/07; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/8671
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2261444A
Cited
US2370137A
Cited
US2345531A
Cited
US2608263A
Cited
GB746564A
Cited
US2674092A
Cited
US2708344A
Cited
US2798461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |