US3450003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ram with supplementing intake means
Assignee: WESLEY W NIGHTINGALE
•
Filing: 1967-01-03
•
Granted: 1969-06-17
•
Expires: 1987-01-03
Abstract
No abstract record available.
Inventors
- 👤 Wesley W Nightingale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:12
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/22; F15B15/223; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US666145A
Cited
US1299761A
Cited
US2610064A
Cited
GB650642A
Cited
US3033169A
Cited
US3218934A
Cited
US3267815A
Cited
US3303746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |