US2875975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve disc assembly
Assignee: Baso Inc
•
Filing: 1955-03-28
•
Granted: 1959-03-03
•
Expires: 1975-03-28
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hajny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:56
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US140006A
Cited
AT42837B
Cited
US1526248A
Cited
GB246631A
Cited
US2035533A
Cited
US2077766A
Cited
US2081462A
Cited
US2233649A
Cited
US2194960A
Cited
GB634353A
Cited
US2312290A
Cited
US2457492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |