Patent US2478557A successfully refreshed from Google Patents.
US2478557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayer and sprayer head for fluent coating materials
Assignee: Individual
•
Filing: 1947-09-13
•
Granted: 1949-08-09
•
Expires: 1967-09-13
Abstract
No abstract record available.
Inventors
- 👤 Walter H Bell
- 👤 Jerry P Parkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:43
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/12; B05B12/00; B05B12/16; B05B12/18; B05B12/32; B05B12/36; B05B7/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1229344A
Cited
US1855457A
Cited
US2029337A
Cited
US2086183A
Cited
US2321792A
Cited
US2410532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |