US2448347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump control
Assignee: Bulova Watch Co Inc
•
Filing: 1944-10-18
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Granted: 1948-08-31
•
Expires: 1964-10-18
Abstract
No abstract record available.
Inventors
- 👤 Beeh Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:21
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/002; F04B1/00; F04B1/12; F04B1/122; F04B1/124; F04B1/14; F04B1/18; F04B1/184; F04B49/22; F04B49/225; F04B7/00; F04B7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2160735A
Cited
US2093477A
Cited
CH198793A
Cited
US2131857A
Cited
GB499242A
Cited
US2357563A
Cited
US2370506A
Cited
US2391221A
Cited
US2388462A
Cited
US2380574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |