US2956261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bubble oscillation eliminator
Assignee: California Research LLC
•
Filing: 1956-01-26
•
Granted: 1960-10-11
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Bernardo F Grossling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:38
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734944A
Cited
US2105318A
Cited
US2275735A
Cited
US2620890A
Cited
US2657276A
Cited
US2794965A
Cited
US2774056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |