Patent US2815994A successfully refreshed from Google Patents.
US2815994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adjusting piston for soap dispenser
Assignee: Individual
•
Filing: 1955-03-07
•
Granted: 1957-12-10
•
Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 Aaron H Lippman
- 👤 Lippman Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:36
CPC Classifications
A; A47; A47K; A47K5/00; A47K5/06; A47K5/12; A47K5/1211; F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1234972A
Cited
US1604287A
Cited
US1595305A
Cited
US1746733A
Cited
US2004669A
Cited
US2294331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |