Patent US2553347A successfully refreshed from Google Patents.
US2553347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pressure, temperature, and vacuum relief valve
Assignee: Beaton & Cadwell Manufacturing Co
•
Filing: 1947-12-06
•
Granted: 1951-05-15
•
Expires: 1967-12-06
Abstract
No abstract record available.
Inventors
- 👤 Erich W Work
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:12
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/18; F16K17/19; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7781
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US853785A
Cited
US868030A
Cited
US919300A
Cited
US1021505A
Cited
US1056562A
Cited
US1941023A
Cited
US2214963A
Cited
US2283513A
Cited
US2389437A
Cited
US2420206A
Cited
US2461982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |