US2087730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportionate feed of liquids and gases
Assignee: Sharples Specialty Co
•
Filing: 1933-10-18
•
Granted: 1937-07-20
•
Expires: 1953-10-18
Abstract
No abstract record available.
Inventors
- 👤 Leo D Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:17
CPC Classifications
C; C10; C10J; C10J1/00; C10J1/02; C10J1/06; C10J1/12; Y; Y10; Y10S; Y10S261/00; Y10S261/17
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) | 1940-07-19 | 1941-01-18 | 1941-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-07-19 | 1945-01-18 | 1945-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-07-19 | 1949-01-18 | 1949-07-20 | $7700.00 | Window Closed / Lapsed |