US3392845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skimming device
Assignee: MARLENE R SHAPIRO
•
Filing: 1967-03-16
•
Granted: 1968-07-16
•
Expires: 1987-03-16
Abstract
No abstract record available.
Inventors
- 👤 Eugene B Shapiro
- 👤 Marlene R Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:38
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/22; A47J43/28; A47J43/284
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US858291A
Cited
US1048546A
Cited
GB305565A
Cited
US1950378A
Cited
US2143782A
Cited
US2573768A
Cited
GB783822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |