US2232820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch and computer control for fluid dispensing pumps
Assignee: JOHN WOOD MANUFACTURING Co Inc
•
Filing: 1938-08-19
•
Granted: 1941-02-25
•
Expires: 1958-08-19
Abstract
No abstract record available.
Inventors
- 👤 William H D Brouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:40
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-02-25 | 1944-08-26 | 1945-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-25 | 1948-08-26 | 1949-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-25 | 1952-08-26 | 1953-02-25 | $7700.00 | Window Closed / Lapsed |