Patent US2631891A successfully refreshed from Google Patents.
US2631891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sprayer
Assignee: Knapp Monarch Co
•
Filing: 1948-04-20
•
Granted: 1953-03-17
•
Expires: 1968-04-20
Abstract
No abstract record available.
Inventors
- 👤 William B Kochner
- 👤 Lamb Ollo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:35
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B05; B05B; B05B7/00; B05B7/24; B05B7/2402; B05B7/2405; B05B7/2416; B05B7/2421; B65D83/16; B65D83/18; B65D83/182
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US851274A
Cited
US1935973A
Cited
GB383768A
Cited
US1920165A
Cited
US1912759A
Cited
US2149181A
Cited
US2182742A
Cited
FR838633A
Cited
US2372678A
Cited
US2362784A
Cited
US2387353A
Cited
US2380964A
Cited
US2497625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |