US2186972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping apparatus
Assignee: Byron Jackson Co
•
Filing: 1938-07-18
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Granted: 1940-01-16
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Expires: 1958-07-18
Abstract
No abstract record available.
Inventors
- 👤 Hollander Aladar
- 👤 Waldemar F Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:36
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/053; F01; F01L; F01L33/00; F01L33/02; F03C1/0403; F03C1/0435; F03C1/0438; F04; F04B; F04B1/00; F04B43/00; F04B43/08; F04B43/10; F04B43/113; F04B43/1136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-01-15 | 1943-07-17 | 1944-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-15 | 1947-07-17 | 1948-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-15 | 1951-07-17 | 1952-01-16 | $7700.00 | Window Closed / Lapsed |