US2904071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Bacharach Instrument Co
•
Filing: 1955-01-07
•
Granted: 1959-09-15
•
Expires: 1975-01-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:28
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/14; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1945760A
Cited
US639403A
Cited
US1374571A
Cited
GB285853A
Cited
US2039638A
Cited
GB557925A
Cited
US2493248A
Cited
GB618611A
Cited
US2590702A
Cited
US2664266A
Cited
US2689115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |