Patent US3495612A successfully refreshed from Google Patents.
US3495612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water pumping and control system
Assignee: Westinghouse Electric Corp
•
Filing: 1967-09-28
•
Granted: 1970-02-17
•
Expires: 1987-09-28
Abstract
No abstract record available.
Inventors
- 👤 William C Moreland
- 👤 Leland L Learn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:47
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/02; B; B67; B67D; B67D1/00; B67D1/0003; B67D1/0009; B67D1/08; B67D1/0857; B67D1/0858; B67D1/0861; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/8593; Y10T137/85954
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2021394A
Cited
US2854826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |