US1878749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1930-11-06
•
Granted: 1932-09-20
•
Expires: 1950-11-06
Abstract
No abstract record available.
Inventors
- 👤 Abramson Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:16
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/04; F02M61/08; F02M61/10; F02M61/12; F02M61/16; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767; Y10T137/86783
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) | 1935-09-20 | 1936-03-21 | 1936-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-20 | 1940-03-21 | 1940-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-20 | 1944-03-21 | 1944-09-20 | $7700.00 | Window Closed / Lapsed |