Patent US2319898A successfully refreshed from Google Patents.
US3433268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel
Assignee: GREE HYDRAULICS OF CALIFORNIA Inc
•
Filing: 1967-04-19
•
Granted: 1969-03-18
•
Expires: 1987-04-19
Abstract
No abstract record available.
Inventors
- 👤 Edward M Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:11
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/18; F15B1/20; F15B1/16; F15B1/165; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/3158; F15B2201/40; F15B2201/415; F15B2201/4155; F15B2201/43; F15B2201/435
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1875732A
Cited
US2317395A
Cited
US2721580A
Cited
US3138176A
Cited
US3066700A
Cited
US3099189A
Cited
US3028881A
Cited
US3351097A
Cited
US3319420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |