US2061608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid supply system
Assignee: Reconstruction Finance Corp
•
Filing: 1929-12-18
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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
2026-10-28 16:52
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
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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 |