US2779962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain sponge
Assignee: Individual
•
Filing: 1952-04-10
•
Granted: 1957-02-05
•
Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Gladys W Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:29
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; B60S3/047; A; A47; A47L; A47L17/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US800254A
Cited
US795211A
Cited
US1132449A
Cited
US1394282A
Cited
US1367758A
Cited
US1426606A
Cited
US1592430A
Cited
US2265804A
Cited
US2305982A
Cited
US2501289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |