US2455946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Peters and Russell Inc
•
Filing: 1944-10-20
•
Granted: 1948-12-14
•
Expires: 1964-10-20
Abstract
No abstract record available.
Inventors
- 👤 George E Peters
- 👤 Linus E Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:00
CPC Classifications
F; F04; F04B; F04B33/00; F04B33/005; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4966; Y10T403/70; Y10T403/7005; Y10T403/7007; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20468
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US623662A
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US1025221A
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US1029232A
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US1139930A
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US1108903A
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US1357544A
Cited
US1441829A
Cited
US1412279A
Cited
GB505677A
Cited
US2209181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |