US3028962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink and float separation apparatus
Assignee: Individual
•
Filing: 1958-06-02
•
Granted: 1962-04-10
•
Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Nelson L Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:36
CPC Classifications
B; B03; B03B; B03B11/00; B03B5/00; B03B5/28; B03B5/30; B03B5/36; B03B5/42; B03B2011/004; B03B2011/006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US994654A
Cited
US1209654A
Cited
US1870613A
Cited
US2328428A
Cited
GB633684A
Cited
GB552399A
Cited
US2521152A
Cited
US2619229A
Cited
US2781906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |