US2292574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator
Assignee: Ambac International Corp
•
Filing: 1941-05-31
•
Granted: 1942-08-11
•
Expires: 1961-05-31
Abstract
No abstract record available.
Inventors
- 👤 Fred N Laub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:01
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/16; G05D16/163; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; G05D16/0675; G05D16/0694; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7826; Y10T137/7827; Y10T137/8593; Y10T137/86928; Y10T137/87016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-08-10 | 1946-02-09 | 1946-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-10 | 1950-02-09 | 1950-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-10 | 1954-02-09 | 1954-08-11 | $7700.00 | Window Closed / Lapsed |