US2419676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Booster pump
Assignee: CURTIS PUMP CO
•
Filing: 1943-04-29
•
Granted: 1947-04-29
•
Expires: 1963-04-29
Abstract
No abstract record available.
Inventors
- 👤 Russell R Curtis
- 👤 Theodore R Dinsmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:58
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2261; F04D29/2277; F02; F02M; F02M37/00; F02M37/04; F02M37/08; F02M37/10; F02M41/00; F02M41/08; F04D13/00; F04D13/12; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1329
Claims Analysis
Total Claims: 0
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US2306298A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |