US2969085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-chattering flow divider valve
Assignee: Ambac International Corp
•
Filing: 1953-10-16
•
Granted: 1961-01-24
•
Expires: 1973-10-16
Abstract
No abstract record available.
Inventors
- 👤 Carl H Nystrom
- 👤 Arthur E Huse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F02C7/232; F02C7/228; F16; F16K; F16K1/00; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7852; Y10T137/7853; Y10T137/7854; Y10T137/7856; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7934
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1466171A
Cited
US1413089A
Cited
US1612597A
Cited
US1779421A
Cited
US1940999A
Cited
US1851438A
Cited
US2268119A
Cited
US2289946A
Cited
US2339101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |