US3288019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic type sedimentation recorder
Assignee: Individual
•
Filing: 1962-05-08
•
Granted: 1966-11-29
•
Expires: 1982-05-08
Abstract
No abstract record available.
Inventors
- 👤 Charles M Blumenfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:28
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/04; G01N15/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US333779A
Cited
DE381209C
Cited
US1068370A
Cited
US1204558A
Cited
US2135817A
Cited
US2725782A
Cited
US3196453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |