Patent US2808716A successfully refreshed from Google Patents.
US2808716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaper wringer
Assignee: Individual
•
Filing: 1955-01-27
•
Granted: 1957-10-08
•
Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Brunnen Frederick R Zum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:45
CPC Classifications
D; D06; D06F; D06F45/00; D06F45/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US36458A
Cited
US533122A
Cited
US709628A
Cited
US872974A
Cited
US1358763A
Cited
US1664223A
Cited
US2234258A
Cited
US2352845A
Cited
US2514321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |