Patent US3742825A successfully refreshed from Google Patents.
Patent US3613844A successfully refreshed from Google Patents.
Patent DE2052012A1 successfully refreshed from Google Patents.
Patent CA706575A successfully refreshed from Google Patents.
Patent US2061608A successfully refreshed from Google Patents.
US2061608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid supply system
Assignee: Reconstruction Finance Corp
•
Filing: 1929-12-18
•
Granted: 1936-11-24
•
Expires: 1949-12-18
Abstract
No abstract record available.
Inventors
- 👤 Charles F Beckwith
- 👤 Main Charles Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:44
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/32; B67D7/3245; B67D7/3254; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/27; Y10T137/7287; Y10T137/7329; Y10T137/7358; Y10T137/7361; Y10T137/7404
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) | 1939-11-24 | 1940-05-25 | 1940-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-24 | 1944-05-25 | 1944-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-24 | 1948-05-25 | 1948-11-24 | $7700.00 | Window Closed / Lapsed |