Patent US2884952A successfully refreshed from Google Patents.
US2884952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line hydraulic pressure relief valve
Assignee: AVCO Inc
•
Filing: 1953-03-23
•
Granted: 1959-05-05
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Mason Walker
- 👤 Stephen J Biello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:17
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/06; F16K17/0433; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7837; Y10T137/7904; Y10T137/7922
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE36407C
Cited
GB139344A
Cited
US2287840A
Cited
US2303590A
Cited
US2351512A
Cited
US2600875A
Cited
FR970737A
Cited
US2555334A
Cited
US2689583A
Cited
US2667893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |