US2583664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief valve
Assignee: Union Carbide Corp
•
Filing: 1945-06-09
•
Granted: 1952-01-29
•
Expires: 1965-06-09
Abstract
No abstract record available.
Inventors
- 👤 Samuel R Oldham
- 👤 James A Hoffman
- 👤 Wilgot J Jacobsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:43
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/164; F16K17/04; F16K17/08; F16K17/085; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7781; Y10T137/7837; Y10T137/7904; Y10T137/7905
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE130738C
Cited
US291013A
Cited
GB190116836A
Cited
US1172739A
Cited
US1753529A
Cited
US2071152A
Cited
GB528010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |