US2348670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Brown Instruments Co
•
Filing: 1940-09-06
•
Granted: 1944-05-09
•
Expires: 1960-09-06
Abstract
No abstract record available.
Inventors
- 👤 Wallace W Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:04
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/28; C12; C12M; C12M21/00; C12M21/04; C12M41/00; C12M41/12; C12M41/18; C12M41/24
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) | 1947-05-09 | 1947-11-08 | 1948-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-09 | 1951-11-08 | 1952-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-09 | 1955-11-08 | 1956-05-09 | $7700.00 | Window Closed / Lapsed |